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Chemistry Quiz 3

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Chemistry quiz-3 contains 10 questions on oxidation-reduction reaction and oxidation number of periodic table elements for different types of competitive exams.

1 / 10

The +3 oxidation state of sulfur is present in

2 / 10

In SO2 +2H2S → 3S +2H2O, the substance that is oxidized

3 / 10

The oxidation state of cobalt in [Co(NH3)]Cl3 is

4 / 10

The value of x in KAl(SO4)x, 12H2O is

5 / 10

The number of electrons required to reduce chromium completely in Cr2O7-2 to Cr+3 in an acidic medium is

6 / 10

The oxidation numbers of nitrogen in NH4NO3

7 / 10

The oxidation number of oxygen in the OF2 compound is

8 / 10

What is the oxidation state of hydrogen in calcium hydride

9 / 10

The oxidation number of sulfur is -2 in

10 / 10

The oxidation state of the P atom in POCl3 is

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