Question

How the following conversions can be carried out?a) Isopropyl benzene to phenol

b) Benzyl alcohol to 2-phenylethanoic acid

c) Ethanal to 2-propanol



1. a) Arrange the following in order of their different properties:-

i) C6H5CH2NH2, C6H5NHCH3, C6H5NH2 (increasing order of pKb)

ii) C6H5NH2, (CH3)3N, C2H5NH2 (decreasing order of basic strength)

iii) (C2H5)3N, C2H5NH2, (C2H5)2NH (increasing order of basic strength in gas phase)

b) Write the mechanism of formation of ether from alcohol.

2. a) Give reason for the following:-

i) Bond angle decrease from H2O to H2Te.

ii) SnCl4 is more covalent than SnCl2.

iii) H2S is a better reducing agent than H2O.

b) Draw the structure of

i) S2O8

2- ii) H4P2O7

3. a) Predict the products of electrolysis in each of the following:

(i) An aqueous solution of CuCl2 with platinum electrodes.

(ii) An aqueous solution of NaOHwith platinum electrodes.

b) Represent the cell in which the following reaction takes place:

Mg + 2Ag+ (0.0001 M) → Mg+2(0.130 M) + 2Ag

Given EoMg+2/Mg = -2.37V, Eo

Ag+/Ag = +0.80V Given log 1.3 x 107=7.1​

Answer 1

The melting point of a substance is the temperature at which it transforms from a solid to a liquid state. Metals show a high melting point as they exist in a crystalline solid form. High melting point metals have strong intermolecular forces between atoms.

Answer 2

Answer:

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