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Q:

Methane contributes towards global warming so it is called a _________________ gas.

 

A) poisonous B) carcinogenic
C) infectious D) greenhouse

Answer:   D) greenhouse



Explanation:
Subject: Chemistry
Exam Prep: Bank Exams
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Positive ions are formed from neutral atoms by loss of

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Answer & Explanation Answer: D) electrons

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Answer & Explanation Answer: B) R.A. Millikan

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Which one of the following laws explain the formation of carbon monoxide and carbon dioxide from carbon and oxygen

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An element X forms an oxide XO_{_{3}}, what ihe valency of X

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Answer & Explanation Answer: D) 6

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Which one of the following elements is the poorest conductor of heat

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Answer & Explanation Answer: B) lead

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Which one among the following is the heaviest

A) 1 mole of water molecules B) 1 mole of ammonia molecules
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Answer & Explanation Answer: C) 1 mole of sodium atoms

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How many electrons are there in Na+

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Answer & Explanation Answer: B) 10

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