A lump of curd is the _________ that is obtained by the chemical reaction between hot milk and lemon juice.

Write the chemical reaction of baking soda with lemon.

Peroxyacyl nitrates (PAN) are formed through photo-chemical reactions between

Write two difference between chemical reaction and nuclear reaction.

Explain how dichromate is extracted from its chromite are. Write the balanced chemical equation for the reaction between an acidified solution of K_(2)Cr_(2)O_(7) and KI .

In humans , all bio chemical reactions take place between the pH value of ______to _______.

(b) (i) Give two equations to illustrate the chemical behaviour of phosphine. (ii) Explain the reaction between PCl_(5) and water.