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Chemistry

Chemistry
The main constituent of biogas is

Methane
Methyl alcohol
Acetic acid
Oxygen

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Chemistry
The gas used for artificial fruit ripening of green fruit is

Acetylene
Methane
Ethylene
Ethane

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Chemistry
Alum is used as

A purifier for water
An analgesic
A fertilizer
A disinfectant

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Chemistry
The oxidation number of nickel in K4[Ni(CN)4] is

Zero
–4
4
8

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Chemistry
The National Chemical Laboratory (India) is located in

Mumbai
Bangaluru
Pune
Hyderabad

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Chemistry
What is the principal ore of aluminium ?

Bauxite
Copper
Lignite
Dolomite

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MORE MCQ ON Chemistry

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