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Chemistry

Chemistry
Which one of the following species has the highest bond order, shortest bond length and maximum bond strength

O2
O+2
O-22
O-2

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Chemistry
The National Chemical Laboratory is situated in

Pune
New Delhi
Bangalore
Patna

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Chemistry
Antacids are found in drugs that give relief to

Headache
Stomach ache
Acne
Eye sight

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Chemistry
The mineral containing both magnesium and calcium is

dolomite
magnesite
calcite
carnallite

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Chemistry
Among the fuels given below, the one with highest calorific value is

Natural gas
Coal
Coke
Wood

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Chemistry
The chemical name of ‘Common salt’ is

Ammonium chloride
Sodium chloride
Calcium chloride
Sodium nitrate

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