Q:

The substance which makes natural rubber more strong and bouncy?

A) Chlorine	B) Sulphur
C) Sponge	D) Polythene

Answer & Explanation Answer: B) Sulphur

Explanation:

Sulfur vulcanisation is a chemical process for converting natural rubber or related polymers into more durable materials by heating them with sulfur. By this they achieve improved elasticity, resilience, tensile strength, viscosity, hardness and weather resistance.

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Q:

Nucleotides are attached by bonds between the

A) phosphates and sugars	B) nitrates and sugars
C) nitrates and phosphates	D) sugars and hydrates

Answer & Explanation Answer: A) phosphates and sugars

Explanation:

In DNA, adjacent nucleotides are linked by a phosphodiester bond: a covalent bond is formed between the 5' phosphate group of one nucleotide and the 3'-OH group of another.

Hence, in this manner, each strand of DNA has a "backbone" of phosphate-sugar-phosphate-sugar-phosphate.

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1 3111

Q:

India's which is the India's only aircraft carrier, will be fitted with a marine hydraulic system to boost the air operations of the ship, for the first time?

A) INS Vikramaditya	B) INS Vikrant
C) INS Tarini	D) INS Viraat

Answer & Explanation Answer: A) INS Vikramaditya

Explanation:

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1 3110

Q:

Red Indians called this local wind Ice Eater?

A) Mistral	B) Chinook
C) Foehn	D) Haramattan

Answer & Explanation Answer: B) Chinook

Explanation:

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1 3110

Q:

" World Water Day " is celebrated on _____

A) 23 rd March	B) 24 th March
C) 22 nd March	D) 21 st March

Answer & Explanation Answer: C) 22 nd March

Explanation:

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1 3109

Q:

A boy is swinging a ball attached to a string in a horizotal circle. If the string snaps

A) the ball will travel towards the center of the circle and fall down	B) it will continue to travel along a tangent to the circle at the point the ball was at the time of snapping and finally fall down
C) it will fall down at the same place where the string breaks	D) None of these

Answer & Explanation Answer: B) it will continue to travel along a tangent to the circle at the point the ball was at the time of snapping and finally fall down

Explanation:

The centripetal force having been removed the body cannot execute the curved path

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Filed Under: Physics

2 3109

Q:

Acute diabets patients smell of

A) acetone	B) ether
C) ethyl alcohol	D) methyl alcohol

Answer & Explanation Answer: A) acetone

Explanation:

Acute diabetes results in the formation of acetone in the body. Hence such patients smell of acetone.

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Filed Under: Chemistry

2 3109

Q:

Which gas is used for the preparation of Soda water?

A) Carbon Dioxide	B) Oxygen
C) Hydrogen	D) Ammonia

Answer & Explanation Answer: A) Carbon Dioxide

Explanation:

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