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1
Q:

In a water molecule, the ratio of mass of Hydrogen to the mass of Oxygen is always:

A) 8:1 B) 7:1
C) 1:7 D) 1:8

Answer:   D) 1:8



Explanation:
Subject: Chemistry
Exam Prep: Bank Exams
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The percentage of nitrogen in the air is about

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Answer & Explanation Answer: C) 78%

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Air ___________________ are the substances which contaminate the air.

A) Reactants B) Irritants
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Answer & Explanation Answer: D) Pollutants

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By using which foam the Researchers from Indian Institute of Technology – Bombay have made a low cost piezo resistive vibration sensor?

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