Question

18.
1m
X 4
Read the following and answer any four questions from 18 (i) to 18 (v).
An element 'A' burns with golden flame in air. It reacts with another
element 'B', atomic number 17 to give a product 'C'. An aqueous solution
of product 'C' on electrolysis gives a compound 'D' and liberates
hydrogen.
(i) What is the substance 'A'?
(ii) Name the substance 'B'.
(iii) Name the substance 'C'.
(iv) Name the substance 'D'.
(v) Write down the equations for the reactions involved.​

Answer 1

Explanation:

on" (and any subsequent words) was ignored because we limit queries to 32 words.

An element a burns with golden flame in air it reacts with another element B atomic number 17 to give a product C

Element "a" burns with a golden flame in air. Therefore, it is Sodium having formula 'Na'. Element "b" has an atomic number 17, which is Chlorine . Compound "c" is formed when sodium and chlorine react together.