1
JEE Main 2019 (Online) 8th April Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
For a reaction scheme $$A\buildrel {{k_1}} \over \longrightarrow B\buildrel {{k_2}} \over \longrightarrow C$$,

if the rate of formation of B is set to be zero then the concentration of B is given by :
A
$${k_1}{k_2}[A]$$
B
$$\left( {{{{k_1}} \over {{k_2}}}} \right)[A]$$
C
$$({k_1} + {k_2})[A]$$
D
$$({k_1} - {k_2})[A]$$
2
JEE Main 2019 (Online) 8th April Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The statement that is INCORRECT about the interstitial compounds is :
A
They are chemically reactive
B
They have metallic conductivity
C
They have high melting points
D
They are very hard
3
JEE Main 2019 (Online) 8th April Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The major product obtained in the following reaction is : JEE Main 2019 (Online) 8th April Evening Slot Chemistry - Compounds Containing Nitrogen Question 148 English
A
JEE Main 2019 (Online) 8th April Evening Slot Chemistry - Compounds Containing Nitrogen Question 148 English Option 1
B
JEE Main 2019 (Online) 8th April Evening Slot Chemistry - Compounds Containing Nitrogen Question 148 English Option 2
C
JEE Main 2019 (Online) 8th April Evening Slot Chemistry - Compounds Containing Nitrogen Question 148 English Option 3
D
JEE Main 2019 (Online) 8th April Evening Slot Chemistry - Compounds Containing Nitrogen Question 148 English Option 4
4
JEE Main 2019 (Online) 8th April Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
5 moles of an ideal gas at 100 K are allowed to undergo reversible compression till its temperature becomes 200 K. If CV = 28 JK–1mol–1, calculate $$\Delta $$U and $$\Delta $$pV for this process. (R = 8.0 JK–1 mol–1]
A
$$\Delta $$U = 14 kJ; $$\Delta $$(pV) = 4 kJ
B
$$\Delta $$U = 2.8 kJ; $$\Delta $$(pV) = 0.8 kJ
C
$$\Delta $$U = 14 kJ; $$\Delta $$(pV) = 18 kJ
D
$$\Delta $$U = 14 kJ; $$\Delta $$(pV) = 0.8 kJ
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