When a piece of X is added to a sodium hydroxide solution, a gas Y is produced. Identify X and Y.
A
X- Gold Y- Hydrogen
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
X- Zinc Y- Hydrogen
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
C
X- Charcoal Y- Carbon dioxide
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
X- Aluminium Y- Carbon dioxide
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution
The correct option is B X- Zinc Y- Hydrogen When strong bases like sodium hydroxide or potassium hydroxide react with metals like aluminium or zinc, it liberates hydrogen gas. Usually non-metals and noble metals do not react with bases.
Here, a piece of X should be metal zinc and Y should be hydrogen gas.