1
JEE Main 2016 (Online) 10th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
Observation of “Rhumann’s purple” is a confirmatory test for the presence of :
A
Reducing sugar
B
Cupric ion
C
Protein
D
Starch
2
JEE Main 2016 (Online) 10th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The “N” which does not contribute to the basicity for the compound is :

JEE Main 2016 (Online) 10th April Morning Slot Chemistry - Compounds Containing Nitrogen Question 179 English
A
N 7
B
N 9
C
N 1
D
N 3
3
JEE Main 2016 (Online) 10th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
Fluorination of an aromatic ring is easily accomplished by treating a diazonium salt with HBF4. Which of the following conditions is correct about this reaction ?
A
Only heat
B
NaNO2/Cu
C
Cu2O/H2O
D
NaF/Cu
4
JEE Main 2016 (Online) 10th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The correct statement about the synthesis of erythritol (C(CH2OH)4) used in the preparation of PETN is :
A
The synthesis requires four aldol condensations between methanol and ethanol.
B
The synthesis requires two aldol condensations and two Cannizzaro reactions.
C
The synthesis requires three aldol condensations and one Cannizzaro reaction.
D
Alpha hydrogens of ethanol and methanol are involved in this reaction.
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