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Chemistry

Chemistry
Total number of naturally occurring elements

62
110
98
92

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Chemistry
The acid rain destroys vegetations because it contains

Nitric acid
Ozone
Sulphuric acid
Carbon monoxide

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Chemistry
Which of the following is the correct sequence of countries in terms of maximum carbon dioxide emission?

China, USA, European Union, India
European Union, China, USA, India
USA, India, China, European Union
China, India, European Union, USA

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Chemistry
The wire of flash bulbs is made up of

Mg
Ag
Cu
Ba

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Chemistry
The chemical(s) most commonly used for cloud seeding or ‘artificial rainmaking’ is/are

Sodium Chloride
All listed here
Silver Iodide
Dry ice or frozen carbon dioxide

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Chemistry
Which gas is used as fire extinguisher ?

Carbon suboxide
Sulphur dioxide
Carbon monoxide
Carbon dioxide

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MORE MCQ ON Chemistry

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