Questions

Q:

Which of the following is a CORRECT statement?

A) Only compounds are pure substance B) Compounds are impure substance
C) Only elements are pure substance D) Both compounds and elements are pure substance
 
Answer & Explanation Answer: D) Both compounds and elements are pure substance

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Q:

In the following passage some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four
alternatives.

Morality is _____ with ethics and symbolises the doctrine of actions right or wrong. Politics is the _____ of expediency and need not always be _____. If something is wrong and _____ expedient, it cannot be _____.

If something is wrong and _____ expedient,

A) merely B) essentially
C) surely D) hardly
 
Answer & Explanation Answer: A) merely

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Q:

All isotopes of the same element have ____________

A) different atomic numbers and different atomic mass B) different atomic numbers and the same atomic mass
C) the same atomic number but different atomic masses D) the same atomic number and the atomic mass
 
Answer & Explanation Answer: C) the same atomic number but different atomic masses

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Q:

Deficiency of which vitamin causes night blindness?

A) Vitamin K B) Vitamin C
C) Vitamin B1 D) Vitamin A
 
Answer & Explanation Answer: D) Vitamin A

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Q:

In which of the following tissues are the cells living, elongated and irregularly thickened at the corners?

A) Parenchyma B) Sclerenchyma
C) Aerenchyma D) Collenchyma
 
Answer & Explanation Answer: D) Collenchyma

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Q:

What is the effective resistance (in Ω) of two resistors 12 Ω and 24 Ω connected in parallel?

A) 36 B) 8
C) 16 D) 72
 
Answer & Explanation Answer: B) 8

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Q:

Which is the form of energy that does NOT occur while riding a bicycle?

A) Heat energy B) Kinetic energy
C) Chemical energy D) Mechanical energy
 
Answer & Explanation Answer: C) Chemical energy

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Q:

A ball of 0.1 kg is dropped from rest. When it falls through a distance of 2 m, the work done by the force of gravity is

A) 0.98 J B) -0.98 J
C) 1.96 J D) -1.96 J
 
Answer & Explanation Answer: C) 1.96 J

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