When 1 mole of a substance `(X)` was treated with an excess of water, 2 moles of readily combustible gas were produced along with solution which when reacted with `CO_(2)` gas produced a white turbidity. The substance `(X)` could be

Identify : An alkaline gas which produces dense white fumes when reacted with HCl gas .

When 1 mole of the substance present in 1 L of solution is known as

When metals react with water...... gas is produced.

When a substance a reacts with water, it produces a combustible gas B and a solution of substance C in water. When another substances D reacts with this solution of C . It also produce gas B on reaction with dilute sulphuric acid at room temperature . A imparts a deep golden yellow colour to the smokless flame of bunsen flame A,B , C and D are respectively

Which substance produces an acidic solution when it is bubbled into water ?