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Chemistry

Chemistry
What is the atomic number of Oxygen

22
5
8
12

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Chemistry
PH value between 6.5-7.5 makes the soil

Basic
Neutral
None of these
Acidic

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Chemistry
The National Chemical Laboratory is situated in

Pune
New Delhi
Patna
Bangalore

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Chemistry
The acid which fails to liberate carbon dioxide from sodium bicarbonate is :

Formic acid
Carbonic acid
Acetic acid
Sulphuric acid

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Chemistry
Among the following the hardest metal is

Iron
Gold
Tungsten
Platinum

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Chemistry
Which among the following is used as a catalyst in the production of high octane fuels?

HCl
H2SO4
HNO3
HF

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