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JEE Main 2021 (Online) 25th July Morning Shift
MCQ (Single Correct Answer)
+4
-1
For the following graphs,

JEE Main 2021 (Online) 25th July Morning Shift Chemistry - Chemical Kinetics and Nuclear Chemistry Question 42 English
Choose from the options given below, the correct one regarding order of reaction is :
A
(b) Zero order (c) and (e) First order
B
(a) and (b) Zero order (e) First order
C
(b) and (d) Zero order (e) First order
D
(a) and (b) Zero order (c) and (e) First order
2
JEE Main 2021 (Online) 22th July Evening Shift
MCQ (Single Correct Answer)
+4
-1
Isotope(s) of hydrogen which emits low energy $$\beta$$$$-$$ particles with t1/2 value > 12 years is/are
A
Protium
B
Tritium
C
Deuterium
D
Deuterium and Tritium
3
JEE Main 2021 (Online) 25th February Evening Shift
MCQ (Single Correct Answer)
+4
-1
Given below are two statements :

Statement I : The pH of rain water is normally $$-$$ 5.6.

Statement II : If the pH of rain water drops below 5.6, it is called acid rain.

In the light of the above statements, choose the correct answer from the options given below :
A
Both Statement I and Statement II are true.
B
Both Statement I and Statement II are false.
C
Statement I is true but Statement II is false.
D
Statement I is false but Statement II is true.
4
JEE Main 2020 (Online) 6th September Evening Slot
MCQ (Single Correct Answer)
+4
-1
The value of KC is 64 at 800 K for the reaction

N2(g) + 3H2(g) ⇌ 2NH3(g)

The value of KC for the following reaction is :

NH3(g) ⇌ $${1 \over 2}$$N2(g) + $${3 \over 2}$$H2(g)
A
8
B
$${1 \over 8}$$
C
$${1 \over 4}$$
D
$${1 \over {64}}$$
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