1
JEE Main 2018 (Online) 15th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
When an electric currents passed through acidified water, 112 mL of hydrogen gas at N.T.P. was collected at the cathode in 965 seconds. The current passed, in ampere, is :
A
1.0
B
0.5
C
0.1
D
2.0
2
JEE Main 2018 (Online) 15th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The minimum volume of water required to dissolve 0.1 g lead (II) chloride to get a saturated solution (Ksp of PbCl2 = 3.2 $$ \times $$ 10-8 atomic mass of Pb = 207 u ) is :
A
0.36 L
B
17.98 L
C
0.18 L
D
1.798 L
3
JEE Main 2018 (Online) 15th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
In which of the following reactions, an increase in the volume of the container will favour the formation of products?
A
2NO2(g) $$\rightleftharpoons$$ 2NO(g) + O2(g)
B
H2(g) + I2(g) $$\rightleftharpoons$$ 2HI(g)
C
4NH3(g) + 5O2(g) $$\rightleftharpoons$$ 4NO(g) + 6H2O(1)
D
3O2 (g) $$\rightleftharpoons$$ 2O3(g)
4
JEE Main 2018 (Online) 15th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
N2O5 decomposes to NO2 and O2 and follows first order kinetics. After 50 minutes, the pressure inside the vessel increases from 50 mmHg to 87.5 mmHg. The pressure of the gaseous mixture after 100 minute at constant temperature will be :
A
175.0 mmHg
B
116.25 mmHg
C
136.25 mmHg
D
106.25 mmHg
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