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Chemistry

Chemistry
Citric acid is present in free form in

Apple
Milk
Lemon
Tamarind

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Chemistry
Total number of naturally occurring elements

98
92
110
62

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Chemistry
Copper substances when exposed to air gains a green coating due to the formation of:

CuCO3 Cu(OH)2
Cu(NO3)2
CuO
CuSO4

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Chemistry
Activated Charcoal is used to remove colouring matter from pure substances by

Reduction
Bleaching
Adsorption
Oxidation

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Chemistry
Silica gel is a

Drying agent
Delicious food
Moisturizer
Flavouring agent

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Chemistry
Peroxyacetyl nitrate is a

Acidic dye
Plant hormone
Secondary pollutant
Vitamin

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MORE MCQ ON Chemistry

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