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Chemistry

Chemistry
Higher concentration of nitrogen dioxide in atmosphere air causes

Asphyxiation
Corrosion
Bronchitis
Cancer

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Chemistry
'Plaster of Paris' is made by partial dehydration of

Gypsum salt
Epsom salt
Green vitriol
Blue vitriol

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Chemistry
Which one of the following organic compound is used to remove stains of iron compounds?

Cinnamic acid
Oxalic acid
Phthalic acid
Benzoic acid

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Chemistry
How many neutrons are there in 92U238 atom ?

330
92
146
238

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Chemistry
The pH of lemon juice is expected to be

Nothing can be predicted
More than 7
Equal to 7
Less than 7

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Chemistry
The fiber least prone to catch fire is

Cotton
Polyester
Terylene
Nylon

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MORE MCQ ON Chemistry

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