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Which among the following substances is used as a lubricant?

Quartz
Silica
Graphite
Nickel
Additional Questions

What does airbag, used for safety of car driver, contain?

Answer

The uranium fuel used worldwide is mainly in the form of

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Chlorination is a process used for water purification. The disinfecting action of chlorine is mainly due to

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Chemically, bleaching powder is

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Consider the following:
1. Oxides of Hydrogen
2. Oxides of Nitrogen
3. Oxides of Sulphur
Which of the above causes/cause acid rain?

Answer

The function of heavy water in a nuclear reactor is to

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Which of the following materials is used along with iron ore and limestone to produce iron in a modern blast furnace?

Answer

Nitrous oxide, commonly called laughing gas, has been a matter of concern to environmentalists recently because:

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The radioactive element most commonly detected in humans is

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Radioisotopes which are used in medical diagnosis are known as

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