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Chemistry

Chemistry
The chemical formula of the laughing gas is

N2O
N2O3
NO2
NO

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Chemistry
Which one of the following elements is least likely to be found in commercial fertilisers?

Silicon
Nitrogen
Phosphorous
Potassium

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Chemistry
The polymerisation of which often following is used in manufacturing of polythene in industry ?

Methane
Acetylene
Ethylene
Styrene

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Chemistry
Of the following compounds of calcium, the one having highest covalent character is

Cacl2
CaBr2
Cal2
CaF2

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Chemistry
When a bond is formed between two atoms, the energy of the system will

Increase
Remain the same
May increase or decrease
Decrease

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Chemistry
The chief constituent of vinegar is

Formic acid
Salycylic acid
Oxalic acid
Acetic acid

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MORE MCQ ON Chemistry

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