Which of the group has highest +I effect ?

(a)

CH₃^-

(b)

CH₃ - CH₂ -

(c)

(CH₃)₂ - CH-

(d)

(CH₃)₃ - C-

-I effect is shown by ____________.

(a)

-Cl

(b)

-Br

(c)

both (a) and (b)

(d)

-CH₃

Assertion : Tertiary Carbocations are generally formed more easily than primary Carbocations ions.
Reason : Hyper conjugation, as well as inductive effect due to additional alkyl group, stabilize tertiary carbonium ions.
(a) both assertion and reason are true and reason is the correct explanation of assertion.
(b) both assertion and reason are true but reason is not the correct explanation of assertion.
(c) Assertion is true but reason is false
(d) Both assertion and reason are false

(a)

both assertion and reason are true and reason is the correct explanation of assertion

(b)

both assertion and reason are true but reason is not the correct explanation of assertion

(c)

Assertion is true but reason is false

(d)

Both assertion and reason are false

Which of the following represent a set of nuclephiles ?

(a)

BF₃, H₂O, NH^2-

(b)

AlCl₃, BF₃, NH₃

(c)

CN^-, RCH₂^-, ROH

(d)

H⁺, RNH₃⁺, :CCl₂

The geometrical shape of carbocation is ______________.

(a)

Linear

(b)

tetrahedral

(c)

Planar

(d)

Pyramidal