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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:

Which one of the following is not a borderline element?

A) Boron B) Silicon
C) Polonium D) Bismuth
 
Answer & Explanation Answer: D) Bismuth

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Q:

Which of the following states has NOT met the boundary with Mizoram?

A) Nagaland B) Myanmar
C) Assam D) Tripura
 
Answer & Explanation Answer: A) Nagaland

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Q:

Which country has started constructing world’s biggest floating Solar power plant in December 2017?

 

A) China B) Australia
C) South Africa D) Russia
 
Answer & Explanation Answer: A) China

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Q:

Molecular clocks are based on the idea that _____.

A) On average neutral mutations arise at a constant rate B) Directional selection occurs at a constant rate
C) Mutations occur once every generation D) Molecules resonate at a certain frequency that can be measured
 
Answer & Explanation Answer: C) Mutations occur once every generation

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Filed Under: Biology
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Q:

What was the major decision that took place in 1987 Montreal Conference?

A) Developed countries will completely ban CFC production by 2000 B) Developed countries will completely ban CFC production by 2010
C) Developing countries will completely ban CFC production by 2000 D) Developing countries will completely ban CFC production by 2020
 
Answer & Explanation Answer: A) Developed countries will completely ban CFC production by 2000

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Filed Under: Indian Economy
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Q:

Who was the first Governor General of Bengal?

A) Robert Clive B) William Bentick
C) Warren Hastings D) Charles Cornawallis
 
Answer & Explanation Answer: C) Warren Hastings

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Filed Under: Indian History
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Q:

In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select 'No Error'.

Industries should regularly check (1)/ if their machines are emitting (2)/ smoke within permission limits. (3)/ No error (4).

 

A) 1 B) 2
C) 3 D) 4
 
Answer & Explanation Answer: C) 3

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Filed Under: English
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