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Chemistry

Chemistry
Besides CO2, the other green house gas is

Ar Ar
CH4
O2
N2 N2

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Chemistry
Which of the following is the maximum number of electrons that can be present in M-shell?

32
2
8
18

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Chemistry
Which of the following chemicals is responsible for depletion of ozone layer in the atmosphere?

Sulphur dioxide
Chlorofluorocarbons
Nitrous oxide
Carbon dioxide

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Chemistry
The most electronegative element among the following is

oxygen
sodium
bromine
fluorine

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Chemistry
A matured mammalian cell without nucleus is

Erythrocyte
Lymphocyte
Spermatozoan
Oocyte

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Chemistry
Alum stops bleeding in minor cuts because of

Emulsion
Solvation
Coagulation
Dialysis

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