Question

An aqueous solution of a substance ‘X’ changes the colour of methyl-orange indicator pink.

i) Identify the nature of ‘X’.

ii) Write the chemical reaction of ‘X’ with.

(i) metal zinc (ii) chalk​

Answer 1

1. base
2. 2NaOH + Zn ---> Na2ZnO2 + H2
3. CaCO3(s)+2NaOH(aq)→Ca(OH)2(aq)+Na2CO3(aq)