1
JEE Main 2018 (Online) 15th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
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
(A)-(R), (B)-(S), (C)-(P), (D)-(Q)
B
(A)-(R), (B)-(P), (C)-(S), (D)-(Q)
C
(A)-(R), (B)-(P), (C)-(Q), (D)-(S)
D
(A)-(P), (B)-(S), (C)-(R), (D)-(Q)
2
JEE Main 2017 (Online) 8th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
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 :
A
Co2+
B
Ni2+
C
Mn2+
D
Zn2+
3
JEE Main 2016 (Online) 9th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The most appropriate method of making egg-albumin sol is :
A
Break an egg carefully and transfer the transparent part of the content to 100 mL of 5% w/V saline solution and stir well
B
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.
C
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.
D
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.
4
AIEEE 2011
MCQ (Single Correct Answer)
+4
-1
Which of the following reagents may be used to distinguish between phenol and benzoic acid ?
A
Tollen’s reagent
B
Molisch reagent
C
Neutral FeCl3
D
Aqueous NaOH
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