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How many H- atoms are present in 0.046 g...

How many `H-` atoms are present in `0.046 g` of ethanol ?

A

`6 xx 10^(20)`

B

`1.2 xx 10^(21)`

C

`3 xx 10^(21)`

D

`3.6xx 10^(21)`

Text Solution

Verified by Experts

The correct Answer is:
D
`Mol. Wt. `of `C_(2)H_(5)OH`
`=2xx12+5+16+1=64`
`:. 48g C_(2)H_(5)OH` has `H atm =6xxN_(A)`
`:. 0.046g C_(2)H_(5)OH ` has `H atm`
`=(6xx6.02xx10^(23)xx0.046)/(46)=3.6xx10^(21)`
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A2Z-CLASSIFICTION, PURIFICATION AND NOMENCLATURE OF ORGANIC COMPOUNDS-Section D - Chapter End Test
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  2. 0.5g of hydrocarbone gave 0.9 g water on combustion . The percentage ...

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  3. What is the correct IUPAC name of the compound shown below?

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  4. Lassaigne's test for the detection of nitrogen will fail in case of :

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  5. The correct IUPAC name of the compound shown below

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  6. Camphor is often used in molecular mass determination because

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  7. In Kjeldahl's method, nitrogen present is estimated as :

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  8. How many H- atoms are present in 0.046 g of ethanol ?

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  9. In the compound CH(2)=CH-CH(2)-CH(2)-C-=CH the C(2)-C(3) bond is of

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  10. A hydrocarbon contains 10.5 gm carbon and 1 gm hydrogen. Its 2.4 gm ha...

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  11. The IUPAC name of CH(3)-underset(OH)underset(|)(CH)-CH(2)-CH(2)-CH(2...

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  12. IUPAC name of the compound

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  13. Common name of ethyl isocynide is

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  14. What is the correct IUPAC name of

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  15. The IUPAC name of the compound is

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  16. Name of the compound given below is

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  17. The compound is known by which of the following names

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  18. Assertion : Ethanol and water mixture can be separed by simple distill...

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  19. Assertion : The IUPAC name for the compound C(6)H(5)COOCH(2)CH(2)COOH ...

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  20. Assertion : A mixture of plant pigments can be separated by chromatogr...

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