Solved Chemistry MCQS
Heating a mixture of sodium benzoate and soda lime gives
Methane
Benzene
Calcium benzoate
Sodium benzoate
The chemical composition of white lead is
PbO
Pb(OH)2.2PbCO3
Na2CO3
Pb3O4
The wire in the flash bulbs is made up of
Ag
Mg
Cu
Ba
Ethyl alcohol is industrially prepare from ethylene by
Absorbing in H2SO4followed by hydrolysis
Permanganate oxidation
Catalytic reduction
Fermentation
Which of the following has linear shape?
SP
SP2
None of the above
SP3
Dilute hydrochloric acid solution cannot be concentrated by boiling beyond
33%
22%
11%
44%
When electricity is passed through moten Al2O3+Na3AIF6 and 13.5 gms of Al are deposited, the number of faraday must be
2
1.5
0.5
1
Which of the following reaction is used for detecting presence of carbonyl group?
Reaction with phenyl hydrazine
Reaction with hydroxylamine
All
Reaction with hydrazine
The reaction/method that does not give an alkane is
Dehydrohalogenation of an alkyl halide.
Hydrolysis of alkyl magnesium bromide
Catalytic hydrogenation of alkanes
Wurtz reaction
The maximum number of electrons in a subshell for which
4
10
8
14
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