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1.
How many σ and π-bonds are there in the molecule of tetracyanoethylene?
2.
Which of the following complex formation indicates presence of sulphur in the organic compound when sodium nitroprusside is added to sodium extract of the compound?
3.
Who pointed out the concept hyperconjugation?
4.
Alkyl halide can be converted into alkene by
5.
The order of reactivities of the following alkyl halides for a 
reaction is :
reaction is :6.
The optically active alkane with lowest molecular weight is :
7.
Which type of isomerism is most common among ethers?
8.
With a change in hybridisation of the carbon bearing the charge, the stability of a carbanion increase in the order
9.
A molecule is 
. If H is replaced by 
and on doing so electron density on 
part increases, then Z is :
. If H is replaced by and on doing so electron density on part increases, then Z is :
10.
Which of the following compounds are not arranged on order of decreasing reactivity towards electrophilic substitution?