Q:

Diamond does not conduct electricity, because

A) It's structure is very compact	B) It is of crystalline nature
C) There are only carbon atoms present in it	D) No free electrons are present in it

Answer & Explanation Answer: D) No free electrons are present in it

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Filed Under: Physics
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Q:

Polynucleotide chain of DNA contains

A) a nitrogenous base, deoxyribose sugar and phosphate group	B) a nitrogenous base, ribose sugar and phosphate group
C) deoxyribose sugar, ribose sugar and phosphate group	D) a nitrogenous base and phosphate group only

Answer & Explanation Answer: A) a nitrogenous base, deoxyribose sugar and phosphate group

Explanation:

The two DNA strands are called polynucleotidesbecause they are composed of simpler monomer units called nucleotides. Eachnucleotideis composed of one of four nitrogen-containingnucleobases (cytosine, guanine, adenine or thymine), a sugar called deoxyribose, and a phosphate group.

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Filed Under: Biology
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Q:

Atomic number of which of the following elements is greater than that of Calcium?

A) Chlorine	B) Argon
C) Sulphur	D) Scandium

Answer & Explanation Answer: D) Scandium

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Filed Under: Chemistry
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Q:

Which among the following has highest electron affinity?

A) Chlorine	B) Fluorine
C) Helium	D) Xenon

Answer & Explanation Answer: A) Chlorine

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Q:

Among the following which one lays eggs and does not produce young ones directly?

A) Echidna	B) Kangaroo
C) Porcupine	D) Whale

Answer & Explanation Answer: A) Echidna

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Filed Under: Animals and Birds
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Q:

During their rule the British persuaded or forced cultivators in Bengal to grow __________.

A) Jute	B) Tea
C) Sugarcane	D) Wheat

Answer & Explanation Answer: A) Jute

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Filed Under: Indian History
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Q:

From which monument, Gautama Buddha propagated his divine knowledge of Buddhism to the world?

A) Humayun's Tomb	B) Mahabodhi Temple Complex
C) Qutub Minar	D) Red Fort Complex

Answer & Explanation Answer: B) Mahabodhi Temple Complex

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Filed Under: Indian History
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Q:

If D and E are points on the sides AB and AC respectively of a triangle ABC such that DE||BC. If AD = x cm, DB = (x – 3) cm, AE = (x + 3) cm and EC= (x – 2) cm, then what is the value (in cm) of x?

A) 3	B) 3.5
C) 4	D) 4.5

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