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Suppose the elements X and Y combine to ...

Suppose the elements X and Y combine to form two compounds `XY_(2)` and `X_(2)Y_(2)`. When 0.1 mole of `XY_(2)` weighs 10 g and 0.05 mole of `X_(3)Y_(2)` weighs 9 g, the atomic weights of X and Y are 

A

40, 30

B

60, 40

C

20, 30

D

30, 20

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The correct Answer is:
A
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AAKASH SERIES-STOICHIOMETRY-OBJECTIVE EXERCISE - 2
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  3. Suppose the elements X and Y combine to form two compounds XY(2) and X...

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  7. 100 ml of 2M HCI solution completely neutralises 10 g. of a metal carb...

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  8. The Molarity of 200 ml of HCl solution which can neutralise 10.6 g. of...

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  9. What is the weight (in g) of Na(2) CO(3) (molar mass= 106) present in ...

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  10. 40 mol of underline(x) M KMnO4 solution is required to react completel...

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  11. Which of the following is dependen on temperature ?

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  13. Which of the following change requires a reducing agent

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  14. Cr(OH)(3)+H(2)O(2)overset("Alkali")(to)CrO(4)^(-2)+H(2)O the number of...

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  15. In the reaction the stoichiometry coefficients of Cr(2)O(7)^(2-), NO(2...

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  16. The oxidation number of V in Rb(4)[HV(10)O(28)] is

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  17. The number of moles of MnO(4)^(-) and Cr(2)O(7)^(-2) separately requir...

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  18. A compound contains atoms of three elements A, B and C. If the oxidati...

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  19. Which one of the following is an example of disproportionation reactio...

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  20. KMnO(4) reacts with KI,in basic medium to form I(2) and MnO(2)When 250...

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