What is carbanion ? How is it formed ? Compare the relative reactivities of `C_(2)overset(ɵ)(H)_(5)` and `(CH_(3))_(2)Coverset(ɵ)(H)` ions.

What is the hyper-conjugation? Which is the most stable among the following? CH_(3)overset(*)(CH_(2)),overset()((CH_(3))_(3))overset(*)(C), (CH_(3))_(2)overset(*)(C)H

The correct stability order for the following is {:(CH_(3)-CH_(2)-overset(ɵ)(C)H_(2),CH_(3)-overset(ɵ)(C)H-CH_(3),Cl-CH_(2)-overset(ɵ)(C)H_(2),Ph-overset(ɵ)(C)H_(2)),(I,II,III,IV):}

The stability of given free radicals in decreasing order is (i) CH_(3)-overset(.)(C)H_(2) (ii) CH_(3)-Coverset(.)(H)-CH_(3) (iii) CH_(3)-underset(CH_(3))underset(|)overset(.)(C)-CH_(3) (iv) overset(.)(C)H_(3)

Which of the following carbocation is most stable ? (a) (CH_(3))_(3)C.overset(+)CH_(2) (b) (CH_(3))_(3)overset(+)C (c) CH_(3)CH_(2)overset(+)CH_(2) (d) CH_(3)overset(+)CHCH_(2)CH_(3)

Arraange the follwooing carbanions in decreasing order of their stability : I. CH -= overset( -)(C ) II. CH_(3) - C -= overset( - ) ( C ) III. CH_(2) = overset(- )( C ) H IV. CH_(3) - overset( - )( C ) H_(2) The correct choice is :

Discuss the concept of hybridisation. What are its different types in a carbon atom? b) What is the type of hybridisation of carbon atoms marked with star? (i) overset(**)(C)H_(2)=CH-overset(O)overset(**||)(C)-O-H (ii) CH_(3)-overset(**)(C)H_(2)-OH (iii) CH_(3)-CH_(2)-overset(O)overset(||)(C^(**))-H (iv) overset(**)(C)H_(3)-CH=CH-CH_(3) (v) CH_(3)-overset(**)(C)-=CH

In the given reaction CH_(3)-overset(O)overset(||)(C)-C_(2)H_(5)overset(X)rarrCH_(3)-CH_(2)-C_(2)H_(5) 'X' will be

What is the IUPAC name of H- overset(O)overset(||)(C)-CH_(2)-CH_(2)-OCH_(3) ?

2-chloro-2-methylpentane on reaction with sodium methoxide in methanol yields: (a) C_(2)H_(5)CH_(2)overset(CH_(3))overset(|)underset(CH_(3))underset(|)(C)-OCH_(3) (b) C_(2)H_(5)CH_(2)underset(CH_(3))underset(|)(C)=CH_(2) (c) C_(2)H_(5)CH_(2)=underset(CH_(3))underset(|)(C)-CH_(3)