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Chemistry

Chemistry
A subshell with l=2 can take up

10 electron
3 electron
5 electron
8 electron

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Chemistry
Which of the following fibres catches fire least ?

Nylon
Cotton
Rayon
Terricot

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Chemistry
Normal rainwater is slightly acidic due to the presence of

None of these
Methane
Carbon dioxide
Sulphur dioxide

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Chemistry
Which of the following is not a natural source of hydrocarbon?

Petroleum
Mica
Natural Gas
Coal

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Chemistry
The high reactivity of fluorine is due to

its high electro negativity
strong F - F bond
availability of d-orbitals
small size of fluorine atom

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Chemistry
When conc. H2SO4 is added to dry KNO3, brown fumes are evolved. These fumes are due to

SO2
SO3
N2O
NO2

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MORE MCQ ON Chemistry

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