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Which of the following statements is wro...

Which of the following statements is wrong ?

A

Using Lassaignes test nitrogen and sulphur present in an organic compound can be tested

B

Using Beilsteins test, the presence of halogens in a compound can be tested

C

In Lassaignes filtrate, the nitrogen in an organic compound is converted to NaCN.

D

In the estimation of carbon, an organic compound is heated with CaO in a combustion tube.

Text Solution

Verified by Experts

The correct Answer is:
D
The organic compound is heated with dry CuO. And not CaO.
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DINESH PUBLICATION-PURIFICATION & CHARACTERISATION OF ORGANIC COMPOUND -Revision Q.F.Competitive exams
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  3. Which of the following statements is wrong ?

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  4. If we want to study the relative arrangement of atoms in a molecule, w...

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  5. In Victor Meyers method, 0.2 g of an organic substance displaced 56 mL...

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  6. 116 mg of a compound on vaporisation in a victor Meyer's apparatus dis...

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  7. The compound formed in the positive test for neitrogen with Lassaigne ...

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  8. The ammonia evolved from the treatment of 0.30 g of an organic compoun...

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  9. Sodium nitoprusside when added to an alkaline solution of sulphide ion...

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  10. How will you separate a solution (miscible ) of benzene + CHCl(3) ?

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  11. The best method for the separation of naphthalene and benzoic acid fro...

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  12. How much of sulphur is present in an organic compound ,if 0.53 g of th...

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  13. The best method for the separation of naphthalene and benzoic acid fro...

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  14. An organic compound having molecular mass 60 is found to contain C = 2...

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  15. An organic compound weighing 0.31 g gave 0.444 g of magnesium pyrophos...

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  16. Fractional distillation is a process by which the separation of differ...

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  17. 0.1 mol of a carbonhydrate with empirical formula CH(2)O contains 1 g ...

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  18. An organic compound contains carbon, hydrogen and oxygen. Its chemical...

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  19. In Lassaigne's test, a blood red colouration with Fe^(3+) ions indicat...

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  20. The compound formed in the positive test for nitrogen with Lassaigne's...

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