Q. Which of the following is the functional group of aldehydes?
-
A.
-CHO
-
B.
-CO-
-
C.
-C=O
-
D.
-OH
Solution
Aldehydes contain the functional group -CHO, which is characterized by a carbonyl group (C=O) bonded to a hydrogen atom.
Correct Answer: A — -CHO
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Q. Which of the following is the functional group of aldehydes? (2023) 2023
-
A.
-CHO
-
B.
-CO-
-
C.
-C=O
-
D.
-OH
Solution
Aldehydes contain the functional group -CHO, which is characterized by a carbonyl group (C=O) bonded to a hydrogen atom.
Correct Answer: A — -CHO
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Q. Which of the following is the functional group of carboxylic acids?
-
A.
-OH
-
B.
-COOH
-
C.
-CHO
-
D.
-C=O
Solution
Carboxylic acids contain the -COOH functional group.
Correct Answer: B — -COOH
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Q. Which of the following is the functional group present in alcohols?
-
A.
-OH
-
B.
-COOH
-
C.
-NH2
-
D.
-CHO
Solution
Alcohols contain the hydroxyl group (-OH) as their functional group.
Correct Answer: A — -OH
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Q. Which of the following is the functional unit of skeletal muscle? (2021)
-
A.
Sarcomere
-
B.
Myofibril
-
C.
Muscle Fiber
-
D.
Fascicle
Solution
The sarcomere is the basic functional unit of skeletal muscle, responsible for muscle contraction.
Correct Answer: A — Sarcomere
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Q. Which of the following is the general formula for alkenes?
-
A.
C_nH_(2n)
-
B.
C_nH_(2n+2)
-
C.
C_nH_(2n-2)
-
D.
C_nH_n
Solution
The general formula for alkenes is C_nH_(2n), where n is the number of carbon atoms.
Correct Answer: A — C_nH_(2n)
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Q. Which of the following is the general formula for alkynes?
-
A.
C_nH_(2n+2)
-
B.
C_nH_(2n)
-
C.
C_nH_(2n-2)
-
D.
C_nH_(2n-1)
Solution
The general formula for alkynes is C_nH_(2n-2), where n is the number of carbon atoms.
Correct Answer: C — C_nH_(2n-2)
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Q. Which of the following is the greatest common divisor (GCD) of 48 and 180?
Solution
The GCD of 48 and 180 is 12, as it is the largest number that divides both without a remainder.
Correct Answer: A — 12
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Q. Which of the following is the greatest common factor (GCF) of 48 and 180?
Solution
The GCF of 48 and 180 is 12.
Correct Answer: A — 12
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Q. Which of the following is the heaviest alkali metal?
-
A.
Lithium
-
B.
Sodium
-
C.
Potassium
-
D.
Cesium
Solution
Cesium (Cs) is the heaviest alkali metal.
Correct Answer: D — Cesium
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Q. Which of the following is the highest court in India?
-
A.
High Court
-
B.
Supreme Court
-
C.
District Court
-
D.
Session Court
Solution
The Supreme Court is the highest judicial forum and final court of appeal under the Constitution of India.
Correct Answer: B — Supreme Court
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Q. Which of the following is the highest peak in India?
-
A.
K2
-
B.
Kangchenjunga
-
C.
Nanda Devi
-
D.
Mount Everest
Solution
Kangchenjunga is the highest peak in India, standing at 8,586 meters.
Correct Answer: B — Kangchenjunga
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Q. Which of the following is the largest artery in the human body? (2021)
-
A.
Pulmonary artery
-
B.
Aorta
-
C.
Coronary artery
-
D.
Femoral artery
Solution
The aorta is the largest artery in the human body, carrying oxygenated blood from the heart to the rest of the body.
Correct Answer: B — Aorta
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Q. Which of the following is the largest desert in India? (2023)
-
A.
Thar Desert
-
B.
Kutch Desert
-
C.
Luni Desert
-
D.
Sahara Desert
Solution
The Thar Desert is the largest desert in India, located in the northwestern part of the country.
Correct Answer: A — Thar Desert
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Q. Which of the following is the largest desert in the world?
-
A.
Sahara Desert
-
B.
Arabian Desert
-
C.
Gobi Desert
-
D.
Antarctic Desert
Solution
The Antarctic Desert is the largest desert in the world, covering about 14 million square kilometers.
Correct Answer: D — Antarctic Desert
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Q. Which of the following is the largest prime number less than 20?
Solution
The largest prime number less than 20 is 19.
Correct Answer: B — 19
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Q. Which of the following is the largest river in India by length? (2022)
-
A.
Ganges
-
B.
Brahmaputra
-
C.
Godavari
-
D.
Yamuna
Solution
The Brahmaputra is the largest river in India by length, flowing for about 2,900 kilometers.
Correct Answer: B — Brahmaputra
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Q. Which of the following is the least common multiple (LCM) of 9 and 12?
-
A.
36
-
B.
72
-
C.
108
-
D.
144
Solution
The LCM of 9 and 12 is 36, as it is the smallest number that both can divide evenly.
Correct Answer: A — 36
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Q. Which of the following is the lightest alkaline earth metal? (2019)
-
A.
Barium
-
B.
Calcium
-
C.
Magnesium
-
D.
Beryllium
Solution
Beryllium (Be) is the lightest alkaline earth metal.
Correct Answer: D — Beryllium
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Q. Which of the following is the longest river in India?
-
A.
Godavari
-
B.
Ganges
-
C.
Brahmaputra
-
D.
Yamuna
Solution
The Brahmaputra is the longest river in India, flowing for about 2,900 kilometers.
Correct Answer: C — Brahmaputra
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Q. Which of the following is the longest river in the world? (2019)
-
A.
Amazon River
-
B.
Nile River
-
C.
Yangtze River
-
D.
Mississippi River
Solution
The Nile River is traditionally considered the longest river in the world, measuring about 6,650 kilometers.
Correct Answer: B — Nile River
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Q. Which of the following is the main component of plasma? (2022)
-
A.
Water
-
B.
Proteins
-
C.
Electrolytes
-
D.
Nutrients
Solution
Plasma is composed of approximately 90% water, with proteins, electrolytes, and nutrients making up the remaining 10%.
Correct Answer: A — Water
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Q. Which of the following is the molecular formula for butane?
-
A.
C3H8
-
B.
C4H10
-
C.
C5H12
-
D.
C6H14
Solution
Butane has the molecular formula C4H10.
Correct Answer: B — C4H10
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Q. Which of the following is the most abundant alkaline earth metal in the Earth's crust? (2019)
-
A.
Beryllium
-
B.
Calcium
-
C.
Magnesium
-
D.
Strontium
Solution
Calcium (Ca) is the most abundant alkaline earth metal in the Earth's crust.
Correct Answer: B — Calcium
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Q. Which of the following is the most abundant element in the universe? (2020)
-
A.
Oxygen
-
B.
Hydrogen
-
C.
Carbon
-
D.
Helium
Solution
Hydrogen is the most abundant element in the universe, making up about 75% of its elemental mass.
Correct Answer: B — Hydrogen
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Q. Which of the following is the most abundant isotope of hydrogen? (2023)
-
A.
Protium
-
B.
Deuterium
-
C.
Tritium
-
D.
Hydrogen-3
Solution
Protium, which has no neutrons, is the most abundant isotope of hydrogen, making up about 99.98% of hydrogen found in nature.
Correct Answer: A — Protium
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Q. Which of the following is the most acidic among the following oxides? (2019)
-
A.
SO2
-
B.
P2O5
-
C.
CO2
-
D.
N2O5
Solution
P2O5 is the most acidic oxide among the given options, as it forms phosphoric acid in water.
Correct Answer: B — P2O5
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Q. Which of the following is the most acidic oxide? (2022)
-
A.
P2O5
-
B.
SO2
-
C.
CO2
-
D.
SiO2
Solution
P2O5 (phosphorus pentoxide) is the most acidic oxide among the given options.
Correct Answer: A — P2O5
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Q. Which of the following is the most electronegative element in the p-block?
-
A.
Fluorine
-
B.
Chlorine
-
C.
Oxygen
-
D.
Nitrogen
Solution
Fluorine is the most electronegative element in the p-block.
Correct Answer: A — Fluorine
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Q. Which of the following is the most electronegative element? (2023)
-
A.
Fluorine
-
B.
Oxygen
-
C.
Nitrogen
-
D.
Chlorine
Solution
Fluorine is the most electronegative element in the periodic table.
Correct Answer: A — Fluorine
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