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In the following change 3Fe+4H2OrarrFe3O...

In the following change `3Fe+4H_2OrarrFe_3O_4 +4H_2` If the atomic weight of iron is 56, then its equivalent weight will be

A

42

B

21

C

63

D

84

Text Solution

Verified by Experts

The correct Answer is:
B

`"Eq. wt"=(56)/(8)xx3=21`
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ALLEN-REDOX REACTIONS-EXERICSE - 2
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  2. In substance Mg(HXO(3)), the oxidation number of X is :-

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  3. In the following change 3Fe+4H2OrarrFe3O4 +4H2 If the atomic weight of...

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  4. In the course of a chemical reaction an oxidant -

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  5. Which statement is wrong?

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  6. Identify the correct statement with respect to the following reaction,...

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  7. Which of the following reactions involves neither oxidation nor reduct...

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  9. In the following reaction the value of 'X' is H(2)O+SO(3)^(2-)rarr S...

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  10. The oxidation number of P in KH(2)PO(3) is ..........

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  11. The oxidation number of iron in potassium ferricyanide [K(3)Fe(CN)(6)]...

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  12. The oxidation number of phosphorus in PH(4)^(+),PO(2)^(3-),PO(4)^(3-) ...

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  13. Which of the following compounds are arranged in increasing oxidation ...

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  14. Iodine shows the highest oxidation state in the compound :-

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  15. The number of electrons required to balance the following equation are...

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  16. Cr(2)O(7)^(-2)+I^(-)+H^(+)rarrCr^(+3)+I(2)+H(2)O The equivalent weig...

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  17. The sum of the oxidation states of all the carbon atoms present in the...

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  18. In the reaction 8Al+3Fe(3)O(4)rarr 4Al(2)O(3)+9Fe the number of el...

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  19. In which of the following reactions, hydrogen is acting as an oxidisin...

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  20. Oxidation number of silver in silver amalgam is

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