Question

1. Which of the following compounds gives the fastest Syl reaction? Br 1 Br a. 1 d. 4 c. 3 b.2 2. What is the product of the following reaction? HBr Br Br Br OH d. 4 a. 1 3. Which compound would be the major elimination product of the following reaction? NaOCH.CH ethanol a. 1 b. 2 c. 3 d. 4 4. Which of the following would you expect to have the lowest boiling point? HO -OH 3 4 OH d. 4 a. 1 6.2 6.3

Answer 1

Question 1 answer-(d) 4

SN1 reaction is faster on tertiary Carbo cation here compound 4 having

Tertiary alkyl halide so after reaction of base the carbon cation is tertiary and is highly stable

Question 2 Answer- (c) 3

The reaction of of excess HBR follow SN2 reaction and form alkyl halide and alcohol

Question 3 answer -(c) 3

In stable chair conformation of 1 2 disubstituted cyclohexane the chlorine group adnexal position and to remove this chlorine the hydrogen must be perpendicular to the plane so only axial hydrogen of ch2 will be removed and not the hydrogen of carbon attached to methane

Question for answer -(b) 2

Diethyl Ether have lowest boiling point as compared to 13 diol and alcohols