Q:

Which one of the followingis notan allotrope of carbon?

A) Coal	B) Diamond
C) Graphite	D) Graphene

Answer & Explanation Answer: A) Coal

Explanation:

Allotropy is the property of some chemical elements to exist in two or more different forms, or allotropes, when found in nature. There are several allotropes of carbon like diamond, graphite, graphene, fullerene, etc.Coal is not an allotrope of carbon because it is not 100% carbon. It contains lot of silica, sulphur and other compounds of carbon apart from carbon.

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Q:

What is the other name of sodium carbonate?

A) Baking soda	B) Washing soda
C) Baking powder	D) No option is correct

Answer & Explanation Answer: B) Washing soda

Explanation:

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Q:

Which of the following metals is the most Malleable?

A) Al	B) Zn
C) Na	D) Ag

Answer & Explanation Answer: C) Na

Explanation:

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Q:

Biogas is produced from biomass by

A) destructive distillation	B) fractional distillation
C) anaerobic fermentation	D) dry distillation

Answer & Explanation Answer: C) anaerobic fermentation

Explanation:

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Q:

Which is largest peninsular river in India?

A) Krishna	B) Godavari
C) Cauvery	D) Mahanadi

Answer & Explanation Answer: B) Godavari

Explanation:

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Q:

How many bio-geographical zones are there in India?

A) 2	B) 4
C) 6	D) 10

Answer & Explanation Answer: D) 10

Explanation:

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Q:

The disease Beri Beri is caused due to the deficiency of which of the following?

A) Vitamin B2	B) Vitamin B1
C) Vitamin B12	D) Vitamin E

Answer & Explanation Answer: B) Vitamin B1

Explanation:

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Q:

What is the technology used in a compact disc?

A) Electrical	B) Laser
C) Electro magnetic	D) Aeronautical

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