JEE Main 2018 (Online) 15th April Morning Slot | Practical Organic Chemistry Question 51 | Chemistry

JEE Main 2018 (Online) 15th April Morning Slot

MCQ (Single Correct Answer)

-1

The correct match between items of List-I and List-II is :

List - I		List - II
(A)	Coloured impurity	(P)	Steam distribution
(B)	Mixture of o-nitrophenol and p-nitrophenol	(Q)	Fractional distribution
(C)	Crude Naphtha	(R)	Charcoal treatment
(d)	Mixture of glycerol and sugars	(S)	Distillation under reduced pressure

(A)-(R), (B)-(S), (C)-(P), (D)-(Q)

(A)-(R), (B)-(P), (C)-(S), (D)-(Q)

(A)-(R), (B)-(P), (C)-(Q), (D)-(S)

(A)-(P), (B)-(S), (C)-(R), (D)-(Q)

JEE Main 2017 (Online) 8th April Morning Slot

MCQ (Single Correct Answer)

-1

A solution containing a group-IV cation gives a precipitate on passing H₂S. A solution of this precipitate in dil.HCl produces a white precipitate with NaOH solution and bluish-white precipitate with basic potassium ferrocyanide. The cation is :

Co²⁺

Ni²⁺

Mn²⁺

Zn²⁺

JEE Main 2016 (Online) 9th April Morning Slot

MCQ (Single Correct Answer)

-1

The most appropriate method of making egg-albumin sol is :

Break an egg carefully and transfer the transparent part of the content to 100 mL of 5% w/V saline solution and stir well

Break an egg carefully and transfer only the yellow part of the content to 100 mL of 5% w/V saline solution and stir well.

Keep the egg in boiling water for 10 minutes. After removing the shell, transfer the white part of the content to 100 mL of 5% w/V saline solution and homogenize with a mechanical shaker.

Keep the egg in boiling water for 10 minutes. After removing the shell, transfer the yellow part of the content to 100 mL of 5% w/V saline solutionand homogenize with a mechanical shaker.

AIEEE 2011

MCQ (Single Correct Answer)

-1

Which of the following reagents may be used to distinguish between phenol and benzoic acid ?

Tollen’s reagent

Molisch reagent

Neutral FeCl₃

Aqueous NaOH

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