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Chemistry

Chemistry
White phosphorus is generally kept under

Alcohol
Glycerine
Kerosene oil
Water

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Chemistry
The charcoal used to decolourise brown sugar solution is

Animal charcoal
Wood charcoal
Sugar charcoal
Coconut charcoal

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Chemistry
The number of d-electrons in Fe2+ (Z = 26) is not equal to that of

d-electrons in Fe(Z = 26)
p-electrons in Ne(Z = 10)
p-electrons in CI(Z = 17)
s-electrons in Mg(Z = 12)

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Chemistry
Detergents are

Sodium salts of fatty acids
Sodium salt of benzoic acid
Sodium salts of sulphonic acids
None of these

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Chemistry
Black lung disease occurs in people working in

Coal mines
Organic solvents industry
Electroplating industry
Paint manufacturing industry

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Chemistry
Cyanide poisoning causes death in seconds because

It causes Lysis of red blood cells
It causes cardiac arrest
It breaks the electron transport chain
It denatures enzymes of the heart/muscle

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MORE MCQ ON Chemistry

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