Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test General Science Chemistry Periodic Table
The formula of the deep red liquid formed on heating potassium dischromate with KCI in conc. H2SO4 is:
1
CrCl3
2
CrO2Cl2
3
CrO3
4
More than one of the above
5
None of the above