571.

Match the following lists

List I	List II
(A) Benzene	1. Phosegen
(B) Ethylene	2. Silver mirror
(C) Acetaldehyde	3. Mustard gas
(D) Chloroform	4. (4n+2)Π electron
	5.Carbylamine

The correct answer is

• A B C D

  4 3 2 1

• A B C D

  3 2 1 4

• A B C D

  2 4 5 3

• A B C D

  5 1 4 3

Match the following lists:

List- I	List- II
A. Grignard reagent	1. H2/ Pd-BaSO4
B. Clemmensen reduction	2. N2H4 | KOH | (CH2)2-OH
C. Rosenmund reduction	3. CH3Mg X
D. Wolff-Kishner reduction	4. Zn-Hg | conc. HCl 5. H2| Ni

• A - 3; B - 4; C - 2; D - 1

• A - 3; B - 4; C - 1; D - 2

• A - 2; B - 1; C - 4; D - 5

• A - 5; B - 3; C - 2; D - 1

The pairs 2R, 3R-butane diol and 2S, 3S-butane diol are enantiomeric.

• 2R, 3R and 2S, 3S

• 2S, 3S and 2S, 3R

• 2R, 3R and 2R, 3S

• 2S, 3S and 2R, 3S

The two enantiomers of secondary butyl chloride differ from each other in which one of the following properties?

• Boiling point

• Specific rotation

• Density

• Cl—Cl bond length

Assertion (A) : Cyclohexane is the most stable cycloalkane.

Reason (R) : Cyclopropane and cyclobutane are less stable due to angle starin and torsional strain.

The correct answer is-

• Both (A) and (R) are true but (R) is not the correct explanation of (A).

• (A) is true but (R) is not true.

• (A) is not true but (R) is true.

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

Identify X and Y in the following reactions-

This reaction is known as

• Wurtz-Fittig reaction

• Wurtz reaction

• Fittig reaction

• Friedel-Crafts reaction

Which one of the following is more reactive towards SN₂ reaction ?

• (CH₃)₃CX

• (CH₃)₂CHX

• CH₃CH₂X

• CH₃X

The reaction between an alkyl halide and sodium metal in dry ether is called

• Clemmensen reduction

• Kolbe's reaction

• Wurtz 's reaction

• Cannizaro's reaction

DDT is related to

• insecticide

• fungicide

• chlorination

• florination