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1
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
2
AIEEE 2010
MCQ (Single Correct Answer)
+4
-1
29.5 mg of an organic compound containing nitrogen was digested according to Kjeldahl’s method and the evolved ammonia was absorbed in 20 mL of 0.1 M HCl solution. The excess of the acid required 15 mL of 0.1 M NaOH solution for complete neutralization. The percentage of nitrogen in the compound is
A
59.0
B
47.4
C
23.7
D
29.5
3
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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