Which of the following statement is not true about homolytic cleavage?

• In homolytic cleavage the movement of a single electron takes place instead of an electron pair.

• The organic reaction which proceed through homolytic bond cleavage are called ionic reactions or polar reactions

• Homolytic cleavage results in the formation of neutral species which contains an unpaired electrons

• None of the above

Which of the following has the maximum acidic strength ?

• p-nitrophenol

• p-nitrobenzoic acid

• o-nitrobenzoic acid

• m-nitrobenzoic acid

A light greenish coloured salt was soluble in water. On passing H₂S into the solution a black precipitate was obtained which dissolved readily in HCl The metal ion present is:

• Co²⁺

• Fe²⁺

• Ni²⁺

• Mn²⁺

The E-isomer among the following is:

Lunar caustic is

• AgCl

• AgNO₃

• NaOH

• KNO₃

What is 'X' in the following sequence ?

ArN₂Cl $\underset{\mathrm{KCN}}{\overset{\mathrm{CuCN}}{\to }}$ Z $\stackrel{\mathrm{H}.\mathrm{OH}}{\to }$ Y $\underset{∆}{\overset{\mathrm{soda}-\mathrm{lime}}{\to }}$ X

• Benzoic acid

• Sodium benzoate

• Benzaldehyde

• Benzene

A salt on reacting with dil. H₂S0₄ gives a reddish brown gas. The salt is:

• KNO₂

• ZnBr₂

• NaNO₃

• FeCl₃

88.

The IUPAC name of the following compound is

 

• 2-ethylpentanol-4

• 3-methylhexanol-3

• 4-methylhexanol-2

• 4-ethylpentanol-2

Amongst the following, the compound that can most readily get sulphonated is :

• benzene

• toluene

• nitrobenzene

• chlorobenzene

(R)-2-Iodobutane is treated with NaI in acetone and allowed to stand for a long time. The product eventually formed is

• (R)-2-iodobutane

• (S)-2-iodobutane

• (±)-2-iodobutane

• (±)-1, 2-diiodobutane