Practical Organic Chemistry Chemistry Test Series For NEET-2020

Test Preparation on Practical Organic Chemistry-Chemistry Test Series For NEET-2020

1.

An organic compound containing C, H and N gave followinganalysis : C = 40%, H = 13.33% and N = 46.67%. Its empiricalformula would be

1C2H7N2
2CH5N
3CH4N
4C2H7N

2.

The decomposition of organic compounds in the presence ofoxygen and without formation of odoriferous substances, iscalled

1Decay
2N2 fixation
3Nitrification
4Denitrification

3.

Empirical formula of a compound is CH2O and its vapourdensity is 30Molecular formula of the compound is

1C3H6O3
2C2H4O2
3C2H4O
4CH2O

4.

The best method for the separation of naphthalene and benzoicacid from their mixture is

1Chromatography
2Crystallisation
3Distillation
4Sublimation

Mixture of benzoic acid and naphthalene can be separated from hot water in which benzoic acid dissolves but naphthalene does not.

5.

The Lassaigne's extract is boiled with conc. HNO3 whiletesting for halogens. By doing so it

1A
2B
3C
4D

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