1
JEE Main 2018 (Online) 16th April Morning Slot
+4
-1
If 50% of a reaction occurs in 100 second and 75% of the reaction occurs in 200 secod, the order of this reaction is :
A
Zero
B
1
C
2
D
3
2
JEE Main 2018 (Offline)
+4
-1
At 518oC the rate of decomposition of a sample of gaseous acetaldehyde initially at a pressure of 363 Torr, was 1.00 Torr s–1 when 5% had reacted and 0.5 Torr s–1 when 33% had reacted. The order of the reaction is
A
0
B
2
C
3
D
1
3
JEE Main 2018 (Online) 15th April Evening Slot
+4
-1
For a first order reaction, A $$\to$$ P, t1/2 (half-life) is 10 days The time required for $${1 \over 4}$$th conversion of A (in days) is : (ln 2 = 0.693,    ln 3 = 1.1)
A
5
B
3.2
C
4.1
D
2.5
4
JEE Main 2018 (Online) 15th April Morning Slot
+4
-1
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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