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Chemistry

Chemistry
Which of the following will replace hydrogen from acids to form salts ?

Na
P
Ag
S

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Chemistry
The gas which turns into liquid at the lowest temperature among the following is

Hydrogen
Nitrogen
Helium
Oxygen

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Chemistry
The basic chemical building block of natural rubber obtained from trees is

Isoprene
Acetylene
Neoprene
Vinyl Chloride

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Chemistry
The acid which is secreted by the glands in the stomach wall is

Phosphoric acid
Sulphuric acid
Nitric acid
Hydrochloric acid

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Chemistry
The material used in solar cells contains

Silicon
Tin
Thallium
Caesium

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Chemistry
Sour taste of ‘Coca Cola’ is due to the presence of

Formic acid
Acetic acid
Hydrochloric acid
Phosphoric acid

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