When a substance, A reacts with water, it produces a combustible gas B and a solution of a substance, C in water. When another substance, D reacts with this solution of C, it also produces the same ga

Question

When a substance, A reacts with water, it produces a combustible gas B and a solution of a substance, C in water. When another substance, D reacts with this solution of C, it also produces the same gas, B on warming, but D can produce B on reaction with dilute sulphuric acid at room temperature. A imparts a deep golden-yellow colour to a smokeless flame of Bunsen burner. A, B, C and D respectively are :

TestHub · Accepted Answer

Na ( s ) + H 2 O ( l ) → NaOH ( aq ) + 1 2 H 2 ( g ) [ A ] [ C ] [ B ] Zn ( s ) + 2NaOH ( aq ) → NaZnO 2 ( aq ) + H 2 ( g ) [ D ] [ C ] [ B ] Zn ( s ) + H 2 SO 4 → ZnSO 4 ( aq ) + H 2 ( g ) dilute [ B ]

Chemistry - s Block Elements Question with Solution | TestHub

Options:

Doubts & Discussion