Official Entrance Archive
130 Solved Questions
CCS HAU General Science (सामान्य विज्ञान) Solved Questions
Explore all verified entrance examination questions in card view. Click "Solve & Solution" on any card to view the complete solution, KaTeX rationale, and interactive answer testing.
6-Yr AAT
Q.1
MCQ
1M
General Science • 10th Chemistry - Reactions
CaO (Quicklime) + H₂O → Ca(OH)₂ (Slaked lime) + Heat. This reaction is an example of:...
6-Yr AAT
Q.2
MCQ
1M
General Science • 10th Chemistry - Acids & Bases
What is the chemical formula of Plaster of Paris?...
6-Yr AAT
Q.3
MCQ
1M
General Science • 10th Chemistry - Bleaching Powder
Bleaching powder is synthesized by the action of chlorine gas on:...
6-Yr AAT
Q.4
MCQ
1M
General Science • 10th Chemistry - Metals
Which non-metal is a liquid at room temperature?...
6-Yr AAT
Q.5
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1M
General Science • 10th Chemistry - Amphoteric Oxides
Which of the following metal oxides reacts with both acids and bases to produce salt and water (amphoteric oxi...
6-Yr AAT
Q.6
MCQ
1M
General Science • 10th Chemistry - Carbon Compounds
What is the general formula for the homologous series of Alkanes?...
6-Yr AAT
Q.7
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1M
General Science • 10th Chemistry - Functional Groups
The functional group present in carboxylic acids like acetic acid (ethanoic acid) is:...
6-Yr AAT
Q.8
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1M
General Science • 10th Biology - Photosynthesis
During photosynthesis, oxygen gas liberated into the atmosphere originates from the splitting of:...
6-Yr AAT
Q.9
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1M
General Science • 10th Biology - Human Excretion
The basic structural and functional filtration unit of the human kidney is called a:...
6-Yr AAT
Q.10
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1M
General Science • 10th Biology - Respiration
During vigorous running or heavy muscular exercise, the accumulation of which acid causes muscle fatigue and c...
6-Yr AAT
Q.11
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1M
General Science • 10th Biology - Hormones
Insulin hormone which regulates blood sugar levels is secreted by the:...
6-Yr AAT
Q.12
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1M
General Science • 10th Biology - Genetics
Gregor Johann Mendel conducted his historic hybridization and inheritance experiments using which plant?...
6-Yr AAT
Q.13
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1M
General Science • 10th Physics - Mirrors
Which type of mirror is universally used as a rear-view mirror in automobiles?...
6-Yr AAT
Q.14
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1M
General Science • 10th Physics - Lens Power
What is the SI unit of power of a lens?...
6-Yr AAT
Q.15
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1M
General Science • 10th Physics - Human Eye
The least distance of distinct vision (near point) for a normal healthy human eye is:...
6-Yr AAT
Q.16
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1M
General Science • 10th Physics - Atmospheric Refraction
The twinkling of stars at night is caused by:...
6-Yr AAT
Q.17
MCQ
1M
General Science • 10th Physics - Electricity
According to Joule's law of heating, the heat produced in a resistor of resistance R carrying current I for ti...
6-Yr AAT
Q.18
MCQ
1M
General Science • 10th Physics - Electric Power
1 Kilowatt-hour (1 kWh or 1 commercial unit of electrical energy) is equal to:...
6-Yr AAT
Q.19
MCQ
1M
General Science • 10th Physics - Magnetic Field
A long cylindrical coil of insulated copper wire wound in the shape of a cylinder is called a:...
6-Yr AAT
Q.20
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1M
General Science • 10th Environment - Ozone
The ozone layer (O₃) in the stratosphere shields the Earth from harmful:...
6-Yr AAT
Q.21
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1M
General Science • 10th Chemistry - Corrosion
The method of protecting iron from rusting by coating it with a thin layer of zinc is called:...
6-Yr AAT
Q.22
MCQ
1M
General Science • 10th Chemistry - Aqua Regia
Aqua Regia, which can dissolve noble metals like gold and platinum, is a freshly prepared mixture of concentra...
6-Yr AAT
Q.23
MCQ
1M
General Science • 10th Chemistry - Carbon Allotropes
Which allotrope of carbon consists of carbon atoms arranged in soccer-ball-like cages (such as C₆₀)?...
6-Yr AAT
Q.24
MCQ
1M
General Science • 10th Chemistry - Saponification
Soaps are sodium or potassium salts of long-chain:...
6-Yr AAT
Q.25
MCQ
1M
General Science • 10th Chemistry - Periodic Table
In the Modern Periodic Table proposed by Henry Moseley, elements are arranged in increasing order of their:...
6-Yr AAT
Q.26
MCQ
1M
General Science • 10th Biology - Stomata
The opening and closing of the stomatal pore in leaves is regulated by the swelling and shrinking of:...
6-Yr AAT
Q.27
MCQ
1M
General Science • 10th Biology - Plant Transport
In vascular plants, the transport of soluble products of photosynthesis (sucrose, amino acids) is called trans...
6-Yr AAT
Q.28
MCQ
1M
General Science • 10th Biology - Heart & Circulation
In the human heart, oxygen-rich blood returning from the lungs enters which chamber first?...
6-Yr AAT
Q.29
MCQ
1M
General Science • 10th Biology - Nervous System
The microscopic gap across which electrical impulses pass chemically between two consecutive neurons is called...
6-Yr AAT
Q.30
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1M
General Science • 10th Biology - Brain Functions
Which part of the human brain is primarily responsible for maintaining posture, balance, and precision of volu...
6-Yr AAT
Q.31
MCQ
1M
General Science • 10th Biology - Thyroid & Goitre
Iodine in our daily diet is essential for the synthesis of which hormone that controls carbohydrate, protein, ...
6-Yr AAT
Q.32
MCQ
1M
General Science • 10th Biology - Asexual Reproduction
Bryophyllum reproduces vegetatively through adventitious buds produced along the notches of its:...
6-Yr AAT
Q.33
MCQ
1M
General Science • 10th Biology - Human Reproduction
In human females, the fertilisation of ovum by sperm normally occurs in the:...
6-Yr AAT
Q.34
MCQ
1M
General Science • 10th Biology - Sex Determination
In human beings, the sex of a newborn child is determined by:...
6-Yr AAT
Q.35
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1M
General Science • 10th Physics - Snell's Law
The ratio of the sine of angle of incidence to the sine of angle of refraction is a constant (sin i / sin r = ...
6-Yr AAT
Q.36
MCQ
1M
General Science • 10th Physics - Refractive Index
The speed of light in vacuum is 3 × 10⁸ m/s. If the refractive index of glass is 1.5, what is the speed of lig...
6-Yr AAT
Q.37
MCQ
1M
General Science • 10th Physics - Vision Defects
Hypermetropia (far-sightedness), where a person cannot see nearby objects clearly, is corrected by using a spe...
6-Yr AAT
Q.38
MCQ
1M
General Science • 10th Physics - Dispersion
When white light passes through a triangular glass prism, which component color bends (deviates) the most?...
6-Yr AAT
Q.39
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1M
General Science • 10th Physics - Electric Fuse
An electric safety fuse wire protects domestic circuits from short-circuiting because it has:...
6-Yr AAT
Q.40
MCQ
1M
General Science • 10th Environment - Energy Flow
According to Lindeman's 10 percent law of energy transfer in an ecosystem, what fraction of energy is captured...
6-Yr AAT
Q.41
MCQ
1M
General Science • 10th Physics - Solenoid
The magnetic field lines inside a long current-carrying straight solenoid are in the form of parallel straight...
6-Yr AAT
Q.42
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1M
General Science • 10th Physics - Fleming Rules
Fleming's Left-Hand Rule is applied to find the direction of:...
6-Yr AAT
Q.43
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1M
General Science • 10th Physics - Atmospheric Scattering
The clear sky appears blue because fine particles in the atmosphere scatter:...
6-Yr AAT
Q.44
MCQ
1M
General Science • 10th Physics - Day Duration
Due to atmospheric refraction of sunlight, the Sun is visible to us about how many minutes before actual sunri...
6-Yr AAT
Q.45
MCQ
1M
General Science • 10th Chemistry - Washing Soda
What is the chemical formula of Washing Soda used for removing permanent hardness of water?...
6-Yr AAT
Q.46
MCQ
1M
General Science • 10th Chemistry - Baking Powder
Baking powder is a mixture of baking soda (sodium hydrogen carbonate) and a mild edible acid such as:...
6-Yr AAT
Q.47
MCQ
1M
General Science • 10th Chemistry - Rancidity
To prevent oily potato chips and snack packets from getting oxidized and rancid, the bags are flushed with an ...
6-Yr AAT
Q.48
MCQ
1M
General Science • 10th Chemistry - Metallurgy
Cinnabar (HgS) is an ore of which metal?...
6-Yr AAT
Q.49
MCQ
1M
General Science • 10th Chemistry - Alloys
Solder, an alloy widely used for welding electrical wires together due to its low melting point, consists of:...
6-Yr AAT
Q.50
MCQ
1M
General Science • 10th Chemistry - Esterification
Ethanoic acid (acetic acid) reacts with absolute ethanol in the presence of an acid catalyst to form a sweet-s...
6-Yr AAT
Q.51
MCQ
1M
General Science • 10th Chemistry - Soaps & Micelles
During cleaning action of soap, the hydrophobic tail of the soap molecule attaches to the:...
6-Yr AAT
Q.52
MCQ
1M
General Science • 10th Biology - Gastric Digestion
In the human stomach, which enzyme initiates protein digestion in the acidic medium created by hydrochloric ac...
6-Yr AAT
Q.53
MCQ
1M
General Science • 10th Biology - Small Intestine
The millions of tiny, finger-like projections present in the inner lining of the small intestine that maximize...
6-Yr AAT
Q.54
MCQ
1M
General Science • 10th Biology - Flower Reproduction
The male reproductive organ of a flower consisting of anther and filament is the:...
6-Yr AAT
Q.55
MCQ
1M
General Science • 10th Biology - Reflex Arc
In a sudden reflex action (e.g., pulling your hand away from a hot stove), the nerve pathway consists of:...
6-Yr AAT
Q.56
MCQ
1M
General Science • 10th Biology - Plant Hormones
Which plant hormone is called a stress hormone because it inhibits growth, induces dormancy, and causes wiltin...
6-Yr AAT
Q.57
MCQ
1M
General Science • 10th Biology - Dihybrid Ratio
In Mendel's dihybrid cross of round yellow and wrinkled green pea seeds, what phenotypic ratio was obtained in...
6-Yr AAT
Q.58
MCQ
1M
General Science • 10th Physics - Resistance Factors
If the length of a uniform conducting wire is doubled and its cross-sectional area is halved, its electrical r...
6-Yr AAT
Q.59
MCQ
1M
General Science • 10th Environment - Biomagnification
The progressive accumulation of non-biodegradable toxic chemicals (like DDT) at higher trophic levels in a foo...
6-Yr AAT
Q.60
MCQ
1M
General Science • 10th Physics - Solar Energy
In a solar cooker, the glass sheet cover placed over the blackened box performs which function?...
6-Yr AAT
Q.61
MCQ
1M
General Science • Periodic Classification of Elements
Who did try to have relationship between properties of elements and their atomic masses first?...
6-Yr AAT
Q.62
MCQ
1M
General Science • Periodic Classification of Elements
According to Newland's classification the properties of Beryllium are similar to magnesium because magnesium i...
6-Yr AAT
Q.63
MCQ
1M
General Science • Periodic Classification of Elements
In Mendeleev's periodic table, gap was not left for which of the following elements....
6-Yr AAT
Q.64
MCQ
1M
General Science • Periodic Classification of Elements
Law of Octaves was applicable upto which element?...
6-Yr AAT
Q.65
MCQ
1M
General Science • Periodic Classification of Elements
It was assumed by Newlands that only:...
6-Yr AAT
Q.66
MCQ
1M
General Science • Periodic Classification of Elements
The long form of modern periodic table was prepared by:...
6-Yr AAT
Q.67
MCQ
1M
General Science • Periodic Classification of Elements
The main drawback of Mendeleev's periodic table was:...
6-Yr AAT
Q.68
MCQ
1M
General Science • Periodic Classification of Elements
On the basis of similarities in properties, Mendeleev corrected the atomic masses of some elements. Some of th...
6-Yr AAT
Q.69
MCQ
1M
General Science • Periodic Classification of Elements
An element M is present in the second group of periodic table, the general formula of its oxide is:...
6-Yr AAT
Q.70
MCQ
1M
General Science • Periodic Classification of Elements
Among chemical properties, Mendeleev concentrated on the compounds formed by elements with:...
6-Yr AAT
Q.71
MCQ
1M
General Science • Periodic Classification of Elements
The elements A, B, C, D and E have atomic number 9, 11, 17, 12 and 13 respectively. Which pair of elements bel...
6-Yr AAT
Q.72
MCQ
1M
General Science • Periodic Classification of Elements
Which of the given elements A, B, C, D and E with atomic numbers 3, 4, 10, 12 and 19 respectively belong to th...
6-Yr AAT
Q.73
MCQ
1M
General Science • Periodic Classification of Elements
Which of the following is an alkali metal?...
6-Yr AAT
Q.74
MCQ
1M
General Science • Periodic Classification of Elements
Which statement is correct about the modern periodic table?...
6-Yr AAT
Q.75
MCQ
1M
General Science • Periodic Classification of Elements
There are ...... elements present in the first period of the periodic table:...
6-Yr AAT
Q.76
MCQ
1M
General Science • Periodic Classification of Elements
Elements X, Y and Z belong to group 2, 14 and 16 respectively of the periodic table. Which of the following el...
6-Yr AAT
Q.77
MCQ
1M
General Science • Periodic Classification of Elements
An element placed in the third period and the 14th group of periodic table has atomic number:...
6-Yr AAT
Q.78
MCQ
1M
General Science • Periodic Classification of Elements
An element has electronic configuration 2, 8, 8, 1. Which statement is not correct about the element?...
6-Yr AAT
Q.79
MCQ
1M
General Science • Periodic Classification of Elements
Which of the following is a metalloid?...
6-Yr AAT
Q.80
MCQ
1M
General Science • Periodic Classification of Elements
The three imaginary elements A, B and C represent a Dobereiner's triad. If the atomic mass of element A is 14 ...
6-Yr AAT
Q.81
MCQ
1M
General Science • Periodic Classification of Elements
Which of the following elements will form an acidic oxide?...
6-Yr AAT
Q.82
MCQ
1M
General Science • Periodic Classification of Elements
Which has the largest atomic size in the following group 1 elements: Na, Li, K, Cs?...
6-Yr AAT
Q.83
MCQ
1M
General Science • Periodic Classification of Elements
In the following elements of the second period, which has the smallest atomic size: Li, C, F and Ne?...
6-Yr AAT
Q.84
MCQ
1M
General Science • Periodic Classification of Elements
Which of the following elements does not lose an electron easily?...
6-Yr AAT
Q.85
MCQ
1M
General Science • Periodic Classification of Elements
The elements of 1st group form ...... with oxygen:...
6-Yr AAT
Q.86
MCQ
1M
General Science • Periodic Classification of Elements
Atomic size of elements present in the same period with increasing atomic number:...
6-Yr AAT
Q.87
MCQ
1M
General Science • Periodic Classification of Elements
Atomic number of an element is 18, and electronic configuration is 2, 8, 8. Which statement is correct about t...
6-Yr AAT
Q.88
MCQ
1M
General Science • Periodic Classification of Elements
Atomic size of elements present in the first group ...... with increasing atomic number:...
6-Yr AAT
Q.89
MCQ
1M
General Science • Periodic Classification of Elements
The most electropositive element in the periodic table is:...
6-Yr AAT
Q.90
MCQ
1M
General Science • Periodic Classification of Elements
Which of the following will have maximum number of valence electrons?...
6-Yr AAT
Q.91
MCQ
1M
General Science • Periodic Classification of Elements
Which of the following does not change while moving down in a group in the periodic table?...
6-Yr AAT
Q.92
MCQ
1M
General Science • Periodic Classification of Elements
Which of the following are the correct characteristics of isotopes of an element?
(i) Same structure
(ii) Same...
6-Yr AAT
Q.93
MCQ
1M
General Science • Periodic Classification of Elements
The order of increasing atomic size is:...
6-Yr AAT
Q.94
MCQ
1M
General Science • Periodic Classification of Elements
Hydrogen resembles which group of elements?...
6-Yr AAT
Q.95
MCQ
1M
General Science • Periodic Classification of Elements
Today the total number of elements known is:...
6-Yr AAT
Q.96
MCQ
1M
General Science • Periodic Classification of Elements
Determine the valency of the element with atomic number 10:...
6-Yr AAT
Q.97
MCQ
1M
General Science • Periodic Classification of Elements
Which of the following elements shows similar properties like element 11X?...
6-Yr AAT
Q.98
MCQ
1M
General Science • Periodic Classification of Elements
How many maximum electrons can the M-Shell contain?...
6-Yr AAT
Q.99
MCQ
1M
General Science • Periodic Classification of Elements
What type of oxide would Eka-aluminium form?...
6-Yr AAT
Q.100
MCQ
1M
General Science • Periodic Classification of Elements
Which of the following elements would lose an electron most easily?...
6-Yr AAT
Q.101
MCQ
1M
General Science • Periodic Classification of Elements
Which of the following is the outermost shell for elements of Period 2?...
6-Yr AAT
Q.102
MCQ
1M
General Science • Periodic Classification of Elements
Atomic number of element was discovered by:...
6-Yr AAT
Q.103
MCQ
1M
General Science • Periodic Classification of Elements
What is the formula of oxides formed by group IV elements as given by Mendeleev?...
6-Yr AAT
Q.104
MCQ
1M
General Science • Periodic Classification of Elements
Electron affinity ............ on moving down a group of the periodic table....
6-Yr AAT
Q.105
MCQ
1M
General Science • Periodic Classification of Elements
Atomic number of an element is the number of ............
6-Yr AAT
Q.106
MCQ
1M
General Science • Periodic Classification of Elements
The element having maximum electron affinity is:...
6-Yr AAT
Q.107
MCQ
1M
General Science • Periodic Classification of Elements
An element is present in III period and 13th group. The total charge on its stable ion is:...
6-Yr AAT
Q.108
MCQ
1M
General Science • Periodic Classification of Elements
The element whose second shell has double the electrons of its first shell is:...
6-Yr AAT
Q.109
MCQ
1M
General Science • Periodic Classification of Elements
The number of electrons present in the outermost shell is the same in the elements present in the same ..........
6-Yr AAT
Q.110
MCQ
1M
General Science • Periodic Classification of Elements
Which inert gas element has only two electrons in its outermost shell?...
6-Yr AAT
Q.111
MCQ
1M
General Science • Periodic Classification of Elements
When Li, Na, K are placed in the decreasing order of their ionization energy, the correct order is:...
6-Yr AAT
Q.112
MCQ
1M
General Science • Periodic Classification of Elements
Choose the correct statement:...
6-Yr AAT
Q.113
MCQ
1M
General Science • Periodic Classification of Elements
Choose the wrong statement:...
6-Yr AAT
Q.114
MCQ
1M
General Science • Periodic Classification of Elements
Choose the correct statement:...
6-Yr AAT
Q.115
MCQ
1M
General Science • Periodic Classification of Elements
Which of the following statements is correct about the trends when going from right to left across a period of...
6-Yr AAT
Q.116
MCQ
1M
General Science • Periodic Classification of Elements
The scientist who showed that the atomic number of an element is a more fundamental property than its atomic m...
6-Yr AAT
Q.117
MCQ
1M
General Science • Periodic Classification of Elements
The element X has electron configuration 2, 8, 8, 2. It belongs to:...
6-Yr AAT
Q.118
MCQ
1M
General Science • Periodic Classification of Elements
As the effective nuclear charge acting on valence electrons in a period ........., the tendency to lose electr...
6-Yr AAT
Q.119
MCQ
1M
General Science • Periodic Classification of Elements
Mendeleev's basis for the periodic table was:...
6-Yr AAT
Q.120
MCQ
1M
General Science • Periodic Classification of Elements
The elements which are present in the middle of the periodic table are called:...
6-Yr AAT
Q.121
MCQ
1M
General Science • Periodic Classification of Elements
Who is known as the father of modern chemistry?...
6-Yr AAT
Q.122
MCQ
1M
General Science • Periodic Classification of Elements
Which of the following elements has the maximum ionization energy?...
6-Yr AAT
Q.123
MCQ
1M
General Science • Periodic Classification of Elements
Which of the following has the largest atomic size?...
6-Yr AAT
Q.124
MCQ
1M
General Science • Periodic Classification of Elements
Element 'A' has eleven protons in its nucleus. To which group of the periodic table will it belong?...
6-Yr AAT
Q.125
MCQ
1M
General Science • Periodic Classification of Elements
Which of the following is not a transition metal?...
6-Yr AAT
Q.126
MCQ
1M
General Science • Periodic Classification of Elements
Which of the following pairs have the same number of electrons in their outermost orbit?...
6-Yr AAT
Q.127
MCQ
1M
General Science • Periodic Classification of Elements
Which of the following remains unchanged on descending a group in the periodic table?...
6-Yr AAT
Q.128
MCQ
1M
General Science • Periodic Classification of Elements
Which pair of elements belongs to the same group?...
6-Yr AAT
Q.129
MCQ
1M
General Science • Periodic Classification of Elements
Which of the following is isoelectronic with a neutral carbon atom?...
6-Yr AAT
Q.130
MCQ
1M
General Science • Periodic Classification of Elements
Dobereiner's triad of elements is illustrated by which of the following?...