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0.2 g of an organic compound on complete...

0.2 g of an organic compound on complete combustion produces 0.18 g of water. The precentage of hydrogen in it is:

A

5

B

10

C

15

D

20

Text Solution

Verified by Experts

The correct Answer is:
B
Percentage of `H`
`=2/18xx("Mass of "H_(2)O)/("Mass of compound")xx100`
`=2/18xx0.18/0.20xx100=10`
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DINESH PUBLICATION-ORGANIC CHEMISTRY - SOME BASIC PRINCIPLES & TECHNIOUES-PURIFICATION & CHARACTERISATION OF ORGANIC COMPOUNDS
  1. In Duma's method, the gas collected in nitrometer is :

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  2. Anthracene is purified by :

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  3. 0.2 g of an organic compound on complete combustion produces 0.18 g of...

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  4. Which process is suitable for the purification of aniline ?

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  5. In the Lassaigne's test for the detection of sulphur, the purple colou...

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  6. For which of the following compounds will Lassaigne's test for nitroge...

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  7. The most satisfactory method to separate mixture of sugars is :

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  8. Lassaigne's extract is botted with dilute HNO(3) before testing for ha...

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  9. The purity of an organic solid is determined by :

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  10. Absolute alcohol is prepared by :

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  11. 0.32 g of an organic compound gave 0.233 g of BaSO(4). Determine the p...

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  12. Which is not used to purify organic solids ?

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  13. Chloroform and benzene form a pair of miscible liquids. These can be s...

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  14. During Lassaigne's test S and N present in an organic compound change ...

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  15. The best method to separate a mixture of ortho and para nitrophenol (1...

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  16. Nitrogen in an organic compound can be estimated by :

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  17. If 0.2 g of an organic compound containing carbon, hydrogen and oxygen...

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  18. A mixture contains four solid organic compounds A, B, C and D. Only he...

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  19. Molecular mass of a volatile substance is determined by :

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  20. The Beilstein test is used in organic compounds for :

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