1
JEE Main 2016 (Online) 10th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
Sodium extract is heated with concentrated HNO3 before testing for halogens because :
A
Silver halides are totally insoluble in nitric acid.
B
Ag2S and AgCN are soluble in acidic medium.
C
S2 and CN, if present, are decomposed by conc. HNO3 and hence do not interfere in the test.
D
Ag reacts faster with halides in acidic medium.
2
JEE Main 2016 (Online) 10th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
Which of the following is an example of homoleptic complex?
A
[Co(NH3)6]Cl3
B
[Pt(NH3)2Cl2]
C
[Co(NH3)4Cl2]
D
[Co(NH3)5Cl]Cl2
3
JEE Main 2016 (Online) 10th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
An aqueous solution of a salt MX2 at certain temperature has a van’t Hoff factor of 2. The degree of dissociation for this solution of the salt is :
A
0.33
B
0.50
C
0.67
D
0.80
4
JEE Main 2016 (Online) 10th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
Which one of the following reagents is not suitable for the elimination reaction ?
JEE Main 2016 (Online) 10th April Morning Slot Chemistry - Haloalkanes and Haloarenes Question 159 English
A
NaOH/H2O
B
NaOEt/EtOH
C
NaOH/H2O-EtOH
D
NaI

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