forms a compound
B which on addition of one mole of hydrogen in presence of Ni forms a compound C.
One mole of compound C on combustion forms two moles of 
and
three moles of 
.
Identify the compounds A, Band C and write the chemical equation of the
reactions involved.
Answer:
(i) Since, compound
C on combustion forms two moles of 
and 3
moles of H2O, therefore, compound C must contain two carbon atoms
and six hydrogen atoms. Thus, compound C must be ethane 
.
Hence, A is
ethanol 
.
B is ethane
C is ethane 
.
(ii) Since,
compound C is obtained by addition of 1 mole of 
in
presence of Ni to compound B, therefore,
B must be ethane
.
(iii) Since,
compound B is formed by heating compound A with cone. 
,
therefore, compound A must be ethanol 
.
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