Question

Give reason
● IRON NAILS ARE KEPT IN KEROSENE OIL.
●Na ARE STORED IN OIL.

Answer 1

Reason

In soft drinks iron nail will look dull and lose its shining.

An iron nail kept in soft drink would lose its shine and appear dull became soft drink contains carbonic acid which reacts with iron nail, so it gives dull appearance.

Iron nail has no reaction with mustard oil, coconut oil and kerosene, so does not lose its shine, when kept in these solutions.

Reason

Sodium and potassium metals are kept in kerosene or in dry mineral oil.

Both of these metals are in Group 1 on the periodic table.

All metals in that group are very reactive with water, including moisture in the atmosphere

Answer 2

Reasons of the following:

1. Iron nails are kept in kerosene oil coz in soft drinks iron nails will look dull nd lose its shining.And iron nails has no rxn with mustard,coconut and kerosene oil , so does not lose its shine , when kept in these solutions.

2. Na are stored under oil to prevent their rxn with O , moisture and CO2 of air so as to protect them as its a highly reactive metal.