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Basics of Organic Chemistry
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Compounds Containing Nitrogen
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Chemistry in Everyday Life
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Practical Organic Chemistry
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1
JEE Main 2024 (Online) 8th April Evening Shift
MCQ (Single Correct Answer)
+4
-1

Match List I with List II

LIST I
(Test)		 LIST II
(Identification)
A. Bayer's test I. Phenol
B. Ceric ammonium nitrate test II. Aldehyde
C. Phthalein dye test III. Alcoholic-OH group
D. Schiff's test IV. Unsaturation

Choose the correct answer from the options given below :

A
(A)-(IV), (B)-(I), (C)-(II), (D)-(III)
B
(A)-(III), (B)-(I), (C)-(IV), (D)-(II)
C
(A)-(II), (B)-(III), (C)-(IV), (D)-(I)
D
(A)-(IV), (B)-(III), (C)-(I), (D)-(II)
2
JEE Main 2024 (Online) 6th April Evening Shift
MCQ (Single Correct Answer)
+4
-1

The correct statement among the following, for a "chromatography" purification method is :

A
$$\mathrm{R}_f$$ of a polar compound is smaller than that of a non-polar compound.
B
Non-polar compounds are retained at top and polar compounds come down in column chromatography.
C
Organic compounds run faster than solvent in the thin layer chromatographic plate.
D
$$\mathrm{R}_f$$ is an integral value.
3
JEE Main 2024 (Online) 6th April Morning Shift
MCQ (Single Correct Answer)
+4
-1

Which of the following statements are correct?

A. Glycerol is purified by vacuum distillation because it decomposes at its normal boiling point.

B. Aniline can be purified by steam distillation as aniline is miscible in water.

C. Ethanol can be separated from ethanol water mixture by azeotropic distillation because it forms azeotrope.

D. An organic compound is pure, if mixed M.P. is remained same.

Choose the most appropriate answer from the options given below :

A
A, C, D only
B
B, C, D only
C
A, B, D only
D
A, B, C only
4
JEE Main 2024 (Online) 1st February Morning Shift
MCQ (Single Correct Answer)
+4
-1
In Kjeldahl's method for estimation of nitrogen, $\mathrm{CuSO}_4$ acts as :
A
catalytic agent
B
hydrolysis agent
C
reducing agent
D
oxidising agent
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