i) Mn Shows the highest oxidation state of +7 with oxygen but with fluorine it shows the highest oxidation state of +4.
ii) Cr²⁺ is a strong reducing agent.
iii) Cu²⁺ salts are coloured while Zn²⁺ salts are white.

b) Complete the following equations:

Distinguish between:
i) C₆H₅-COCH₃ and C₆H₅-CHO
ii) CH₃COOH and HCOOH

c) Arrange the following in the increasing order of their boiling points:
CH₃CHO,CH₃COOH,CH₃CH₂OH

Or

a) Write the chemical reaction involved in Wolff Kishner reduction.

b) Arrange the following in the increasing order of their reactivity towards nucleophilic addition reaction:
C₆H₅COCH₃, CH₃-CHO, CH₃COCH₃

c) why carboxylic acid does not give reactions of carbonyl group ?

d) Write the product in the following reaction

e) A and B are two functional isomers of compound C₃H₆O. On heating with NaOH and I₂, isomers B forms a yellow precipitate of iodoform whereas isomer A does not form any precipitate. Write the formulae of A and B.

Draw the structure of 4-chloropentan-2-one ?

Rearrange the compounds of each of the following sets in order of reactivity towards S_N2 displacement:

(i) 2-Bromo-2-methylbutane, 1-Bromopentane, 2-Bromopentane

(ii) 1-Bromo-3-methylbutane, 2-Bromo-2-methylbutane, 3-Bromo-2-methylbutane

How would you obtain the following?

(i) Benzoquinone from phenol

(ii) 2-methyl propan-2-ol from methyl-magnesium bromide

 (iii) Propane-2-ol from propene

(a) Illustrate the following name reactions:

(i) Cannizzaro’s reaction

(ii) Clemmensen reduction

(b) How would you obtain the following?

(i) But-2-enal from ethanal

(ii) Butanoic acid from butanol

(iii) Benzoic acid from ethylbenzene

 OR

 (a) Given chemical tests to distinguish between the following:

(i) Benzoic acid and ethyl benzoate

(ii) Benzaldehyde and acetophenone

(b) Complete each synthesis by giving missing reagents or products in the following:

Write the structure of p-methyl benzaldehyde.

(a) Write the products formed when CH3CHO reacts with the following reagents:
(i) HCN
(ii) H₂N−OH
(iii) CH₃CHO in the presence of dilute NaOH

(b) Give simple chemical tests to distinguish between the following pairs of compounds:
(i) Benzoic acid and Phenol
(ii) Propanal and Propanone

OR

(a) Account for the following:
(i) Cl−CH₂COOH is a stronger acid than CH₃COOH.
(ii) Carboxylic acids do not give reactions of the carbonyl group.

(b) Write the chemical equations to illustrate the following name reactions:
(i) Rosenmund reduction
(ii) Cannizzaro's reaction

(c) Out of CH₃CH₂−CO−CH₂−CH₃ and CH₃CH₂−CH₂−CO−CH₃, which gives iodoform test?

469.

Write the equations involved in the following reactions :
Etard reaction

Do the following conversions in not more than two steps :
Benzoic acid to benzaldehyde