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General Science MCQs

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Question 28hard

The chemical (Ethyl Mercaptan) added to the otherwise odourless LPG cooking gas for imparting a detectable smell to the gas is a compound of:

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Question 29easy

The element common to all acids is

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Question 30easy

Non stick cooking utensils are coated with

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Question 31easy

Monazite is an ore of

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Question 32easy

Carbon, diamond and graphite are together called:

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Question 33medium

Potassium nitrate is used in

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Question 34medium

Permanent hardness of water may be removed by the addition of:

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Question 35hard

Soda water contains

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Question 36easy

The most important ore of aluminum is

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