Chemistry MCQS for Class 10
General formula of Alkane is.
C11H2n-2
C10H2n-2
CnH2n-2
C6H26
In which of the following groups , oxygen is attached on both sides with carbon atoms.
Ether group
Ketone group
Aldehyde group
Easter group
Alkanes are also called:
Paraffins
olefins
aliphatic compound
cyclic compounds
The strone heating of coal in retorts in the absence of air is called.
Fractional distillation
sublimation
Destructive distillation
Roasting
Which one contains triple covalent bond?
Pentane
All
Acetylene
Ethylene
General formula of Alkyl radical is..
C11H2n-1
C6H2n-2
CnH2n-2
CnH2n+2
Percentage of methane present in natural gas is.
85%
80%
75%
90%
Natural gas contains.
Ethane
Propane
Methane
All
Which one of the followoing is the Hardest coal.
Bituminous
Lignite
Peat
Anthracite
Identify which one of the following compounds is a ketron?
(CH3)2CHCl
(CH3)2CHCl
(CH3)2 CHOH
(CH3)2CO
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