1
NEET 2021
MCQ (Single Correct Answer)
+4
-1
The following solutions were prepared by dissolving 10 g of glucose (C6H12O6) in 250 ml of water (P1), 10 g of urea (CH4N2O) in 250 ml of water (P2) and 10 g of sucrose (C12H22O11) in 250 ml of water (P3). The right option for the decreasing order of osmotic pressure of these solutions is :
A
P3 > P1 > P2
B
P2 > P1 > P3
C
P1 > P2 > P3
D
P2 > P3 > P1
2
NEET 2021
MCQ (Single Correct Answer)
+4
-1
The correct sequence of bond enthalpy of 'C-X' bond is :
A
CH3 - Cl > CH3 - F > CH3 - Br > CH3 - l
B
CH3 - F < CH3 - Cl < CH3 - Br < CH3 - l
C
CH3 - F > CH3 - Cl > CH3 - Br > CH3 - l
D
CH3 - F < CH3 - Cl > CH3 - Br > CH3 - l
3
NEET 2021
MCQ (Single Correct Answer)
+4
-1
Dihedral angle of least stable conformer of ethane is :
A
0$$^\circ$$
B
120$$^\circ$$
C
180$$^\circ$$
D
60$$^\circ$$
4
NEET 2021
MCQ (Single Correct Answer)
+4
-1
Noble gases are named because of their inertness towards reactivity. Identify an incorrect statement about them.
A
Noble gases have large positive values of electron gain enthalpy
B
Noble gases are sparingly soluble in water
C
Noble gases have very high melting and boiling points
D
Noble gases have weak dispersion forces
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