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A sample of 1.0g of solid Fe(2)O(3) of 8...

A sample of 1.0g of solid `Fe_(2)O_(3) of 80%` purity is dissolved in a moderately concentrated HCl solution which is reduced by zinc dust. The resulting solution required 16.7mL of a 0.1M solution of the oxidant. Calculate the number of electrons taken up by the oxidant.

A

2

B

4

C

6

D

5

Text Solution

Verified by Experts

The correct Answer is:
C
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NARENDRA AWASTHI-STOICHIOMETRY-Level 1 (Q.151 To Q.180)
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  2. 0.45 g of acid (mol. Wt.=90) was exactly neutralized by 20 ml of 0.5(M...

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  3. A 3.4g sample of H(2)O(2) solution containing x%H(2)O by mass requires...

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  4. What volume of O(2) measured at standard condition will be formed by t...

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  5. A sample of 1.0g of solid Fe(2)O(3) of 80% purity is dissolved in a mo...

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  6. KMnO(4) reacts with oxalic acid according to the equation 2MnO(4)^(-...

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  7. Ratio of moles of Fe (II) oxidised by equal volumes of equimolar KMnO(...

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  8. The mass of a mixtutre contining HCl and H(2)SO(4) is 0.1g. On treatme...

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  9. A solution of Na(2)S(2)O(3) is standardized iodometrically against 0.1...

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  10. 0.80g of impure (NH(4))(2) SO(4) was boiled with 100mL of a 0.2N NaOH ...

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  11. The NH(3) evolved due to complete conversion of N from 1.12g sample of...

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  12. Find out % of oxalate ion ina given sample of an alkali metal oxalate ...

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  13. 320g mg of a sample of magnessium having a coasting of its oxide requi...

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  14. The concentration of bivalent lead ions in a sample of polluted of pol...

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  15. What volume of HNO(3) ("sp. gravity" 1.05mL^(-1) "containing "12.6(w//...

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  16. The totak volume of 0.1M KMnO(4) solution that are needed to oxidize 1...

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  17. When 2.5g of a sample of Mohr's salt reacts completely with 50mL of (N...

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  18. 4 mole of a mixture of Mohr's salt and Fe(2)(SO(4))(3) requires 500mL...

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  19. The equilvalent mass of a metal is twice to that of oxygen. How many t...

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  20. A metal oxide has the formular M(2)O(3). It can be reduced by hydrogen...

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