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25.5 g of H(2)O(2) solution on decomposi...

25.5 g of `H_(2)O_(2)` solution on decomposition gave 1.68 L of `O_(2)` at STP. The percentage strength by weight of the solution is

A

30

B

10

C

20

D

25

Text Solution

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The correct Answer is:
C
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AAKASH SERIES-STOICHIOMETRY-Objective Exercise -2
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  2. A mixture of MgO and Mg weighing 10 g is treated with excess of dil HC...

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  3. 25.5 g of H(2)O(2) solution on decomposition gave 1.68 L of O(2) at ST...

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  4. A gas mixture contains acetylene and carbondioxide. 20 lit of this mix...

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  5. What is the volume (lit) of oxygen required at STP to completely conve...

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  6. X litre of carbon monoxide is present at mSTP. It is completely oxidi...

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  7. Acetylene can be prepared from calcium carbonate by a series of reacti...

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  8. Sodium carbonate of 92% purity is used in the reation Na(2)CO(3)+CaCl(...

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  9. Liquid benzene burns in oxygen according to 2C(6)H(6)(1)+150(2)(8) to1...

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  10. Phosphine on decomposition produces phosphorus and hydrogen. When 100 ...

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  11. Number of moles of KMnO(4) required to oxidize one mole of Fe(C(2)O(4)...

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  12. 4.9 g of H2SO4 decompedes x.g of NaCl to give 5g of sodium hydrogen su...

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  13. Weight of one C(60)H(122) molecule is

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  14. If 5 ml of methane is completely burnt the volume of oxygen required a...

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  15. How many moles of acidified FeSO(4) can be completely Oxidised by one ...

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  16. A mixture of methane and ethylene in the volume ratio x : y has a tota...

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  17. One litre of a mxiture of CO and CO(2) is passed over red hot coke whe...

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  18. The atomic masses of two elements A and B are 20 and 40 respectively. ...

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  19. In the formation of Al(2)O(3) from Al and O(2), if 1.5 mole of oxygen ...

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  20. The weight of MgCO(3) required for the preparation of 12g of MgSO(4) b...

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