Question

An element A reacts with oxygen to form compound B. Aqueous solution of B which is C turns
china rose indicator into magenta colour. Identify A,B,C and explain with an example​

Answer 1

Answer:

From among the options X could be S or N

2

. But N

2

is gas and cant be soft and dull. Hence, X is Sulphur.

S+O

2

→SO

2

SO

2

+H

2

O→H

2

SO

3

China Rose: Extract of china rose (Gudhal) petals is of pink colour. It will change into dark pink (magenta) in acidic solution and green in basic solution.