How vanaspati ghee is obtained by the hydrogenation of vegetable oil.

Write short note on hydrogenation of vegetable oils.

How is average speed obtained ?

When zinc metal is treated with a dilute solution of a strong acid, a gas is evolved, which is utilised in the hydrogenation of oil. Name the gas evolved. Write the chemical equation of the reaction involved and also write a test to detect the gas formed.

the catalyst used in the hydrogenation of oils is :

How is granular zinc obtained ?

How are fishes obtained ?

How is XeF_2 obtained ?