Chemistry MCQS for Class 10
Natural gas is 85% methane, It is used to make the follwing except.
Propane
Ethane
Carbon black
Both b and c
Pitch is black residue of
Coal
Coal gas
Coke
Coal-tar
Which one of the following compounds is an aldehyde?
CH3COCH3
CH3CHO
CH3-COOH
CH3-CH2-OH
What one of the following does not contain protein?
Potatoes
Eggs
Beans
Pulses
Formula of Decane is.
C10H16
C10H20
C10 H22
C10 H4
Coal is the mixture of
Hydrogen
All
Methane
Carbon monoxide
Which of the following is the hardest coal?
Pear
Bituminous
Lignite
Anthracite
Coal gas is mixture of
CO, CH4, H2
CO, H2 and CO2
CO and CH4
CO . CH4. CO2
The carbon contents in lignite is.
50%
80%
70%
60%
Percentage of carbon in peat is.
80%
50%
60%
70%
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