Science GK Questions (MCQs) for Competitive Exam

Q91. When a moving bus suddenly applies brakes, the passengers sitting in it fall in the forward direction. This can be explained by whom?
(A) Newton’s third law
(B) Newton’s first law
(C) Relativity theory
(D) Newton’s second law

(B) Newton’s first law

Q92. Who is considered the father of modern chemistry?
(A) Antoine Lavoisier
(B) Mendeleev
(C) Otto Hahn
(D) Ernest Rutherford

(A) Antoine Lavoisier

Q93. More than 80% of the cell is made up of
(A) Fat
(B) Water
(C) Protein
(D) Mineral

(B) Water

Q94. If the weight of a man on the Earth is 600 N, then what will be his weight on the Moon?
(A) 60 N
(B) 6000 N
(C) 100 N
(D) 1000 N

(C) 100 N

Q95. The wind is one.
(A) Mixture of elements only
(B) Mixture of both elements and compounds
(C) Pure mixture
(D) Mixture of compounds only

(B) Mixture of both elements and compounds

Q96. Energy is needed to sustain life. Energy is obtained by which one of the following processes?
(A) Photorespiration
(B) Metabolism
(C) Orbital
(D) Decomposition

(B) Metabolism

Q97. Who is considered the ‘Father of Modern Genetics’?
(A) Charles Darwin
(B) Alexander Fleming
(C) Lip Hoan
(D) Gregor Medal

(D) Gregor Medal

Q98. Which of the following acids is found in grapes?
(A) Malic acid
(B) Acetic acid
(C) Dartaric acid
(D) Citric acid

(C) Dartaric acid

Q99. The basis of DNA finger printing is-
(A) DNA replication
(B) Di-Razzuk
(C) DNA polymorphism
(D) Errors in the original sequence

(C) DNA polymorphism

Q100. Which of the following is not an example of electromagnetic wave?
(A) X-rays
(B) Y-ray
(C) Ultrasonic wave
(D) Ultraviolet ray

(C) Ultrasonic wave

Environment and Ecology MCQs

Chemistry MCQs

Biology MCQs

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