1.

(a) Complete the following reactions : CH_(4)+CI_(2) overset("Sunlight")rightarrow..........+HCI CH_(3)CH_(2)OH overset("Hot.conc.")underset(H_(2)SO_(4))to H_(2)C =CH_(2)+H_(2)O (b) How is scum formed ?

Answer»

Solution :(a) Complete reactions are -
(i) `CH_(4)+CI_(2)overset("Sunlight")rightarrow..........CH_(3)CI+HCI`
`CH_(3)CH_(2)OH overset("Hot.conc.")underset(H_(2)SO_(4))rightarrowH_(2)C =CH_(2)+H_(2)O`
(b) When soap reacts with hard water, the minerals PRESENT in water react with soap and form a white curdy substance known as scum. It reduces the cleansing ability of soap.


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