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Question

a) Write the general formula of alkanes from the table__________________.
b) How many σ bonds are there in C2H6____________________.
c) What sequential order did you notice in the molecular formulae?______________.
d) There exists double bonds between carbon atoms of alkenes, do you agree with this statement? Give reasons.

Solution
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(a)CnH2n+2

(b)2+6=8

(c) each homologue increases by CH2 i.e. 144 by mass.

(d) yes,their general formula is CnH2n which means they req. less hydrogen than alkanes so, 4π-bond must be there they give Bromine water test as proof also.

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Q1
a) Write the general formula of alkanes from the table__________________.
b) How many σ bonds are there in C2H6____________________.
c) What sequential order did you notice in the molecular formulae?______________.
d) There exists double bonds between carbon atoms of alkenes, do you agree with this statement? Give reasons.
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Q2
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