Teaching BPSC बिहार मध्य विद्यालय (6 to 8) शिक्षक भर्ती 4.0 Mock Test General Science Chemistry Periodic Table
The correct chemical formula of calcium nitrate and potassium dichromate are respectively:
1
Ca2(NO3)2 & K(Cr2O7)2
2
Ca2No3 & K2(Cr2O7)2
3
Ca(NO3)2 & K2Cr2O7
4
More than one of the above
5
None of the above