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Chemistry

Chemistry
A subshell with l=2 can take up

10 electron
5 electron
3 electron
8 electron

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Chemistry
Aerated water contains

H2
NO2
CO2
SO2

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Chemistry
The process of improving the quality of rubber by heating it with sulphur is called.

Galvanization
Vulcanization
Acceleration
Sulphonation

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Chemistry
When a metal is heated in a flame, the electrons absorb energy and jump to higher energy state. On coming back to the lower energy siate, they emit light, which we can observe in

Absorption spectra
Fluorescence
Emission spectra
Raman spectra

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Chemistry
A powerful eye irritant present in smog is

Carbon dioxide
Sulphur dioxide
Peroxyacetyl nitrate
Nitric oxide

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Chemistry
The quality of petrol is expressed in terms of

Cetane number
Added unlead compounds
Octane number
Gold number

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MORE MCQ ON Chemistry

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