Sodium and potassium are stored under oil. Give reason.

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Solution

Sodium and potassium are stored under oil because they react with oxygen so vigorously that they catch fire if kept in the open. Hence, to protect them they are kept immersed in kerosene oil.

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Question 12 (b)

Give reason why sodium, potassium and lithium are stored in oil?

Give reasons

(a) Platinum, gold and silver are used to make jewellery.

(b) Sodium, potassium and lithium are stored under oil.

(d) Carbonate and sulphide ores are usually converted into oxides during the process of extraction.

Give reasons for the following :

(a) Sodium and potassium are stored in kerosene.

(b) Copper cannot displace zinc from its salt solution (zinc sulphate solution).

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