NEW
New Website Launch
Experience the best way to solve previous year questions with mock tests (very detailed analysis), bookmark your favourite questions, practice etc...
1

AIPMT 2006

MCQ (Single Correct Answer)
The major organic product in the reaction is

CH3 $$-$$ O $$-$$ CH(CH3)2 + HI $$ \to $$ products
A
CH3I + (CH3)2CHOH
B
CH3OH + (CH3)2CHI
C
ICH2OCH(CH3)2
D

Explanation

In case of unsymmetric ethers when treated with HI then I attaches to smaller and less complex alkyl group as it follows SN2 mechanism

CH3 $$-$$ O $$-$$ CH(CH3)2 + HI $$ \to $$ CH3I + (CH3)2CHOH
2

AIPMT 2006

MCQ (Single Correct Answer)
Ethylene oxide when treated with Grignard reagent yields
A
primary alcohol
B
secondary alcohol
C
tertiary alcohol
D
cyclopropyl alcohol

Explanation

3

AIPMT 2006

MCQ (Single Correct Answer)
The general molecular formula, which represents the homologous series of alkanols is
A
CnH2n+2O
B
CnH2nO2
C
CnH2nO
D
CnH2n+1O

Explanation

General molecular formula of alkanols is

CnH2n+2O or CnH2n+1OH
4

AIPMT 2005

MCQ (Single Correct Answer)
Which one of the following compounds is most acidic?
A
Cl $$-$$ CH2 $$-$$ CH2 $$-$$ OH
B
C
D

Explanation

Phenols are more acidic than alcohols as they are resonance stabilised whereas alcohols are not.

Further –NO2 is an electron withdrawing group which increases acidic character and facilitates release of proton, whereas –CH3 is an electron donating group which decreases acidic character, thus removal of H+ becomes difficult.

Joint Entrance Examination

JEE Main JEE Advanced WB JEE

Graduate Aptitude Test in Engineering

GATE CSE GATE ECE GATE EE GATE ME GATE CE GATE PI GATE IN

Medical

NEET

CBSE

Class 12