1
JEE Main 2019 (Online) 9th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
The number of water molecule(s) not coordinated to copper ion directly in CuSO4.5H2O, is :
A
2
B
4
C
3
D
1
2
JEE Main 2019 (Online) 9th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
C60 an allotrope of carbon contains :
A
12 hexagons and 20 pentagons.
B
20 hexagons and 12 pentagons.
C
16 hexagons and 16 pentagons
D
18 hexagons and 14 pentagons.
3
JEE Main 2019 (Online) 9th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
The osmotic pressure of a dilute solution of an ionic compound XY in water is four times that of a solution of 0.01 M BaCl2 in water. Assuming complete dissociation of the given ionic compounds in water, the concentration of XY (in mol L–1) in solution is :
A
4 × 10–4
B
6 × 10–2
C
4 × 10–2
D
16 × 10–4
4
JEE Main 2019 (Online) 9th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Among the following, the set of parameters that represents path function, is :
(A) q + w
(B) q
(C) w
(D) H–TS
A
(B) and (C)
B
(A) and (D)
C
(B), (C) and (D)
D
(A), (B) and (C)
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