For the following reactions
(A) CH₃CH₂CH₂Br + KOH → CH₃ - CH = CH₂ +KBr + H₂O
(B) (CH₃)₃CBr + KOH → (CH₃)₃ COH + KBr
(C) 
Which of the following statement is correct ?

(a)

(A) is elimination, (B) and (C) are substitution

(b)

(A) is substitution, (B) and (C) are elimination

(c)

(A) and (B) are elimination and (C) is addition reaction

(d)

(A) is elimination, B is substitution and (C) is addition reaction

Homolytic fission of covalent bond leads to the formation of ___________.

(a)

electrophile

(b)

nucleophile

(c)

Carbo cation

(d)

free radical

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

The geometrical shape of carbocation is ______________.

(a)

Linear

(b)

tetrahedral

(c)

Planar

(d)

Pyramidal

In which of the following homolytic bond fision takes place?

(a)

Alkaline hydrolysis of ethyl chloride

(b)

Addition of HBr to double bond

(c)

Photochlorination of methane

(d)

Nitration of benzene

Which of the following represents the correct order of stability of the given carbocations?

(a)

III > I > II

(b)

I > III > II

(c)

III > II > I

(d)

II > III > I

The most stable alkene is _______

(a)

CH₂=CH-CH₂-CH₃

(b)

\(C{ H }_{ 2 }=\underset { \overset { | }{ C{ H }_{ 3 } } }{ CH } =C{ H }_{ 2 }\)

(c)

CH₂ = CH-CH = CH₂

(d)

CH₃-CH = CH-CH₃

CH₂ is an _________

(a)

Electrophile

(b)

Nucleophile

(c)

Free Radical

(d)

Ambiphiles

Assertion (A) : Allyl carbanion (\(C{ H }_{ 2 }=CH-\overset { \overset { - }{ .. } }{ C } { H }_{ 2 }\)) is more stable than \(\overset { \overset { - }{ .. } }{ C } { H }_{ 2 }-N{ O }_{ 2 }\)
Reason (R) : On \(\overset { \overset { - }{ .. } }{ C } { H }_{ 2 }-N{ O }_{ 2 }\) , only -I effect of NO_- group is present while is allyl carbanion, resonance is present.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true but R is not correct explanation of A.
(c) A is true statement but R is false.
(d) Both A and R are false.

(a)

Both A and R are true and R is the correct explanation of A.

(b)

Both A and R are true but R is not correct explanation of A.

(c)

A is true statement but R is false.

(d)

Both A and R are false.

The number of hyperconjugation structures possible in ___________

  

(a)

3

(b)

2

(c)

6

(d)

None of these

Which one of the following is correct order of the stability of carbanions ?

(a)

-C(CH₃)₃ > ^-CH(CH₃)₂ > ^-CH₂^-CH₃ > ^-CH₃

(b)

^-CH₃ > ^-CH₂^-CH₃ > ^-CH(CH₃)₂> ^-(CH₃)₃

(c)

^-CH(CH₃)₂>^-H₃ > ^-CH₂^-CH₃ >^-(CH₃)₃

(d)

^-CH₂^-CH₃>^-CH(CH³)₂>^-CH₃>^-(CH₃)₃

Which one of the following is not nucleophile ?

(a)

H₂O

(b)

NH₃

(c)

R-OH

(d)

FeCl₃

Which one of the following is nucleophile ?

(a)

BF₃

(b)

AICl₃

(c)

CO₂

(d)

R-SH

Which one of the following species has tendency to show +1 effect ?

(a)

-NH₂

(b)

-CI

(c)

-C₆H₅

(d)

-CH₃

Which one of the following has least acidic character ?

(a)

HCOOH

(b)

CH₃COOH

(c)

CH₂CICOOH

(d)

CCl₃COOH

Statement - I : Fluoro acetic acid is stronger acid than acetic acid
Statement - II : Fluorine has high electronegativity and it is facilitate to dissociate the O-H bond easily.

(a)

Statement-I and II are correct and statement-II is correct explanation of statement-I.

(b)

Statement-I and II are correct but statement-II is not correct explanation of statement-I.

(c)

Statement-I is correct but statement-II is wrong

(d)

Statement-I is wrong but statement-II is correct

Which one of the following electrophile used for nitration of benzene ?

(a)

Br^⊕

(b)

NO₂^⊕

(c)

-NH₂

(d)

NO^Ө

Primary alcohols undergo which type of reaction to form alkenes ?

(a)

Elimination

(b)

Oxidation

(c)

Reduction

(d)

Hydrolysis