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Chemistry

Chemistry
Chemical formula of washing soda is

NaHCO3
Na2CO3.10H2O
Ca(OH)2
Na2SO4.10H2O

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Chemistry
Which of the following has least negative electron gain enthalpy

S
F
P
Cl

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Chemistry
The gas which is mainly responsible for the green house effect is:

Carbon dioxide
Carbon monoxide
Oxygen
Ozone

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Chemistry
Ethylene is a ________ molecule.

Nonpolar
Polar
Covalent
Ionic

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Chemistry
Exposure to mixtures of chemicals are greater than expected on the basis of effects of exposure to each chemical individually. This is known as

Independent
Additives
Synergism
Antagonism

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Chemistry
The rusting of iron is a/an

None of these
Physical change
Electrical change
Electrochemical change

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MORE MCQ ON Chemistry

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