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Chemistry

Chemistry
Sour milk contains

Lactic acid
Citric acid
Tartaric acid
Acetic acid

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Chemistry
An element of atomic no. 29 belongs to

F-block
S-block
P-block
D-block

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Chemistry
Malathion is a/an

Fumigant
Pesticide
Preservative
Insecticide

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Chemistry
The two metal ions that cause hardness to water are:

Calcium, Magnesium
Sodium, Potassium
Sodium, Magnesium
Sodium, Calcium

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Chemistry
The main active constituent of tea and coffee is

chlorophyll
nicotine
aspirin
caffeine

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Chemistry
Yellow Cake' an item of smuggling across border is

A crude from of cocaine
Unreformed gold
Uranium oxide
A crude from of heroin

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MORE MCQ ON Chemistry

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