Q20 of 26 Page 1

Predict the products of the following reactions :

(i)



(ii)



(iii)



(i)



When propanone reacts with hydrazine it links to the carbonyl group to give propanone hydrazone.


(ii)


When toluene undergoes oxidation under the presence of KMnO4, it forms carboxylic acid.


(iii)



Bromination of benzoic acid using bromine water gives 3-bromobenzoic acid.


More from this chapter

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18

Write any three differences between Physisorption and Chemisorption.

 19

Give reasons for the following:

(i) Phenol is more acidic than methanol


(ii) The C – O – H bond angle in alcohols is slightly less than the tetrahedral angle (109028’).


(iii) (CH3)3C – O – CH3 on reaction with HI gives (CH3)3 C – I and CH3 – OH as the main products and not (CH3)3C – OH and CH3 – I.


 21

(a) Account for the following :

(i) Cu+ is unstable in an aqueous solution.


(ii) Transition metals form complex compounds.


(b) Complete the following equation :



 22

Write the names and structures of the monomers of the following polymers:

(i) Terylene


(ii) Buna-S


(iii) Neoprene