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Chemistry

Chemistry
Stalactites and Stalagmites form due to the precipitation of :

CaCl2
MgCO3
CaCO3
MgCl2

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Chemistry
What is the atomic number of Oxygen

5
22
8
12

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Chemistry
The total energy of revolving electron in an atom

Can have any value above zero
Cannot be negative
Can never be positive
Will always be positive

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Chemistry
What are the major pollutants of cigarette smoke?

Dioxin and benzene
Carbon monoxide and benzene
Carbon monoxide and nicotine
Carbon monoxide and dioxin

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Chemistry
Which of the following fibres catches fire least ?

Nylon
Rayon
Cotton
Terricot

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Chemistry
Which of the following is not a donor atom?

Phosphorus
Arsenic
Aluminium
Antimony

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MORE MCQ ON Chemistry

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