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Chemistry

Chemistry
Which of the following gases will effuse out of football bladder most quickly ?

O2
He
H2
N 2

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Chemistry
Candle is a mixture of

Paraffin was and stearic acid
Higher fatty acids and stearic acid
Bees wax and stearic acid
Bees wax and paraffin wax

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Chemistry
Methanoic and ethanoic acids can be distinguished by the action of

NaOH
Tollen's reagent
SOCl2
NaHCO3

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Chemistry
Freon' used as refrigerants is chemically

Fluorinated hydrocarbon
Fluorinated aromatic compound
Chlorinated hydrocarbon
Chlorofluoro hydrocarbon

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Chemistry
A subshell with l=2 can take up

3 electron
10 electron
8 electron
5 electron

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Chemistry
The number of waves in n x 10th Bohr's orbit are

n2
n-2
n
n3

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