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Chemistry

Chemistry
Mark the compound which possess ionic, covalent and coordinate bonds.

SO3
NH4Cl
H2O
SO2

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Chemistry
The nucleus of a hydrogen atom consists of

1 proton + 2 neutron
1 proton only
1 neutron only
1 electron only

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Chemistry
One of the constituents of tear gas is

Chloropicrin
Ether
Ethanol
Ethane

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Chemistry
For generation of biogas, the materials commonly used are

Crop residues
Animal wastes
Aquatic plants
Forest residues

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Chemistry
Quartz is a crystalline form of

Alumina
Glass
Limestone
Silica

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Chemistry
Hardness of the water is commonly measured in terms of

Magnesium sulphate equivalents
Calcium sulphate equivalents
Magnesium carbonate equivalents
Calcium carbonate equivalents

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