Chemistry MCQS for Class 10
Carbon content in coke is.
88%
70%
80%
98%
The % age of carbon is coal is
40-60
40-90
40-80
50-70
Which one of the following does not contain starch
Sugar cane
Maize
Barley
Potatoes
Who was prepared acetic acid in laboratory?
Dalton
Berzelius
Kolbe
Wohler
Which one contains double covalent bound?
Acetylene
Pentane
All
Ethylene
Which one is heterocyclic compound?
Thiophene
Cyclobutane
Nephthalene
Benzene
General formula of alcohols is:
RCHO
ROH
O= R – C -OH
O = R – C- R
The ability of carbon atom to form chain is called.
Isomerism
resonance
Catenation
Condensation
The coal in which the percentage of carbon is 60%
Bituminous
Peat
Lignite
Anthracit
The ability of carbon atoms to form chains is called.
Condensation
Isomerism
Catenation
Resonance
Who put forward ” the vital force theory”?
Jabir – Bin – Hayan
Berzellius
Wohler
Kolbe
The functional group -COOH is found in.
Esters
Carboxylic acids
alcohols
Aldehydes
In laboratory urea was prepared by
Dalton
Wohler
Berzelius
Rutherford
Coal having 90% carbon contents is called.
Lignite
anthracite
Peat
bituminous
The % age of carbon in coke is
60
70
90
98
Which of the following statement s is not true about fossil fuels?
they all contain carbon
They are renewable
they cause acid rain
they produce pollutants when burnt
The example of heterocyclic compound is.
Benzene
Cyclohexane
Pyridine
Hexane
Chemical formula for urea is:
NH4CH
NH4CNO
NH2CONH2
NH4CI
Which one of the following is not a fossil fuel?
Petroleum
Natural gas
Bio gas
Coal
The % age of carbon in peat is :
90%
80%
60%
70%
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