engineering recuitment NCRTC Junior Maintainer Mock Test Series 2025 Fitter Metals and Properties Metals
What would happen when a few pieces of Copper metal is put in a beaker containing dilute Sulphuric acid ?
1
Vigorous reaction occurs and a colourless gas is liberated.
2
No reaction takes place.
3
The mixture slowly turns blue.
4
A gas with suffocating smell is liberated.