In K2Cr2O7 the oxidation number of chromium is____________________?

Related Mcqs:

In electrolytic cell electricity carries________________?

A. spontaneous reaction B. non-wpontaneous reaction C. neutralization D. all of above...

In Galvanic cell electrons flow from anode to cathode through__________________?

A. external electric circuit B. salt bridge C. movement of ions D. all of the above...

Stronger the oxidizing agent greater is the________________?

A. Oxidation potential B. Reduction potential C. Redox potential D. emf of cell...

Which of the following is true in the case of Zn-Cu cell ?

A. The flow of electrons takes place from copper to zinc B. E0red of copper electrode is less than that of zinc electrode C. Zinc acts as an anode and copper as cathode D. All are correct...

The reduction potential Zn is_________________?

A. 0.76 B. -0.76 C. -0.55 D. 0.55...