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What mass of H(2)C(2)O(4). 2H(2)O (mol.m...

What mass of `H_(2)C_(2)O_(4). 2H_(2)O (mol.mass=126)` should be dissoved in water to prepare 250mL of centinormal solution which act as a reducing agent?

A

0.63g

B

0.1575g

C

0.126g

D

0.875g

Text Solution

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The correct Answer is:
B
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NARENDRA AWASTHI-STOICHIOMETRY-Level 1 (Q.151 To Q.180)
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  2. The equivalent weight of salt KHC(2)O(4).H(2)C(2)O(4).4H(2)O when us...

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  3. The equivalent mass of dilvalent metal is W. The molecular mass of its...

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  4. When BrO(3)^(-) "ions reacts with" Br(2) "is liberated. The equivalent...

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  5. If m(A) gram of a metal A displaces m(B) gram of another metal B from ...

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  6. Hydrazine reacts with KIO(3) in presence of HCl as : N(2)H(4)+IO(3)^...

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  7. What will be the normally of a solution obtained by mixiing 0.45N and ...

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  8. A solution contaning 2.7 xx 10^(-3) mol of A^(2+) "ion required" 1.6 x...

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  9. H(2)O(2) is used as bleaching reagent because on dissociation it gives...

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  10. 1.25g of a solid dibasic acid is completely neutralised by 25mL of 0.2...

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  11. 10mL of N-HCl, 20mL of N//2 H(2)SO(4) and 30mL N//3 HNO(3) are mixed t...

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  12. 0.45 g of acid (mol. Wt.=90) was exactly neutralized by 20 ml of 0.5(M...

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

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

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

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

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

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

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

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  20. 0.80g of impure (NH(4))(2) SO(4) was boiled with 100mL of a 0.2N NaOH ...

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