Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test General Science Chemistry Chemical Reaction
When zinc is put in copper sulphate solution, the colour of copper sulphate becomes?
1
Colourless
2
Yellowish
3
Greenish
4
More than one of the above
5
None of the above