Physical Chemistry MCQ with Answers

Physical Chemistry MCQ with Answers

56) In which of the following compounds, the oxidation number of iodine is fractional?

Answer is:

I₃⁻

57) The oxidation states of sulphur in Caro′s and Marshall′s acid are:

Answer is:

+6, +6

Explanation:

Both acids have peroxy linkages.

58) A compound of Xe and F is found to have 53.5% Xe. What is the oxidation number of Xe in this compound?

Answer is:

6

59) Number of moles of K₂Cr₂O₇ that can be reduced by 1 mole of Sn²⁺ ions is:

Answer is:

1⁄3

60) When methane is burnt in oxygen to produce CO₂ and H₂O, the oxidation number changes by:

Answer is:

8

Explanation:

Change = 4 − (−4) = 8

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