Q:

Which of the following statements is Incorrect?

A) Atomic size increases from top to bottom	B) All the elements of a group have same valency
C) Isotopes of the same elements are placed in the same group	D) Atomic radius generally decreases from left to right

Answer & Explanation Answer: C) Isotopes of the same elements are placed in the same group

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Filed Under: Chemistry
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Q:

Ice floats on water because its density is

A) more than water	B) zero
C) less than water	D) same as water

Answer & Explanation Answer: C) less than water

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Q:

Saffron is produced in a large scale in

A) Himachal Pradesh	B) Gujarat
C) Jammu and Kashmir	D) Kerala

Answer & Explanation Answer: C) Jammu and Kashmir

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Filed Under: Indian Geography
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Q:

Because of base pairing in DNA, the percentage of

A) thymine molecules in DNA is about equal to the percentage of adenine molecules	B) cytosine molecules in DNA is much greater than the percentage of guanine molecules
C) adenine molecules in DNA is about equal to the percentage of guanine molecules	D) adenine molecules in DNA is much greater than the percentage of thymine molecules

Answer & Explanation Answer: A) thymine molecules in DNA is about equal to the percentage of adenine molecules

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Filed Under: Biology
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Q:

Syngamy is defined as

A) the fission of one egg	B) the fusion of one of the sperms with the synergid
C) the fission of one sperm	D) the fusion of one of the sperms with the egg

Answer & Explanation Answer: D) the fusion of one of the sperms with the egg

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Filed Under: Biology
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Q:

What does Coulomb's Law state?

A) The magnitude of the force of attraction (or repulsion) between two point charges is inversely proportional to the product of quantity of the two charges as well as to the square of the distance between them.	B) The magnitude of the force of attraction (or repulsion) between two point charges is directly proportional to the product of the quantity of the two charges and inversely proportional to the square of the distance between them.
C) The magnitude of the force of attraction (or repulsion) between two point charges is directly proportional to the product of the quantity of the two charges and directly proportional to the square of the distance between them.	D) The magnitude of the force of attraction (or repulsion) between two point charges is directly proportional to the product of the quantity of the two charges and to the square of the distance between them.

Answer & Explanation Answer: B) The magnitude of the force of attraction (or repulsion) between two point charges is directly proportional to the product of the quantity of the two charges and inversely proportional to the square of the distance between them.

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Filed Under: Physics
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Q:

The capacity to do work is called

A) Pressure	B) Force
C) Power	D) Energy

Answer & Explanation Answer: D) Energy

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Filed Under: Physics
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Q:

___ is not related to gases.

A) Boyle's Law	B) Joule's Law
C) Avogadro's Law	D) Charle's Law

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