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Chemistry

Chemistry
How many neutrons are there in 92U238 atom ?

146
92
330
238

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Chemistry
Browning of paper in old books is caused by

Frequent use
Collection of dust
Lack of aeration
Oxidation of cellulose

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Chemistry
Which one of the following elements exhibits the greatest tendency to lose electrons ?

Zinc
Lithium
Oxygen
Fluorine

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Chemistry
Which one of the following is found in Vinegar ?

Formic acid
Butyric acid
Propionic acid
Acetic acid

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Chemistry
The pair of compounds used as anaesthetic in medicines :

Chloroform, Nitrogen dioxide
Nitrous oxide, Chloroform
Nitrogen dioxide, ether
Ether, Ammonia

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Chemistry
Polythene is polymer of

Propylene
Ethylene
Acetylene
Aniline

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MORE MCQ ON Chemistry

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