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1
JEE Main 2016 (Online) 9th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
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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.
2
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
3
AIEEE 2010
MCQ (Single Correct Answer)
+4
-1
Biuret test is not given by
A
carbohydrates
B
polypeptides
C
urea
D
proteins
4
AIEEE 2004
MCQ (Single Correct Answer)
+4
-1
The compound formed in the positive test for nitrogen with the Lassaigne solution of an organic compound is
A
Fe4[Fe(CN)6]3
B
Na4[Fe(CN)5NOS]
C
Fe(CN)3
D
Na3[Fe(CN)6]
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