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Chemistry

Chemistry
Which one is a soluble salt in H2O

CaCl2
Zn(OH)2
CuS
PbCl2

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Chemistry
Tar roads get damaged if there is

No maintenance
No sloping
Heavy traffic
Stagnation of water on road

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Chemistry
Detergents are

Sodium salts of fatty acids
Sodium salts of sulphonic acids
Sodium salt of benzoic acid
None of these

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Chemistry
The element with highest ionization potential is

Carbon
Helium
Oxygen
Boron

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Chemistry
The name of unreactive gas is

Nitrogen
Oxygen
Carbon dioxide
Hydrogen

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Chemistry
Besides CO2, the other green house gas is

CH4
Ar Ar
N2 N2
O2

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MORE MCQ ON Chemistry

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