問題一覧
1
Units of rate of reaction
t
2
Rate of disappearance a rate of formation always equals for a given reaction in given time interval
f
3
Rate of reaction in terms of any of the reactant or product always comes out to be same
t
4
1
5
2
6
1
7
1
8
Calculate overall order of reaction
3
9
2
10
3
11
4
12
3
13
3
14
Recheck
1
15
BB
2
16
3
17
2
18
2
19
3
20
A: order of reaction may come out to be same as that of stochiometric coefficient
R: for elementary reaction of mass action is same as that of rate law
1
21
complex
22
4
23
2
24
2
25
1
26
For a zero order reaction50% completed in 10 minutes then how much time would it take for 75% completion
1) 20 minute
2) 40 minute
3) 15 minute
4) none
3
27
A first order reaction is 90% completed in 10 minutes how much time would it take for 99% completion1)
1) 15 minute
2) 20 minute
3) 25 minute
4) 50 minute
2
28
A first order reaction is 50% completed in 20 second then how much time will it take for 75% completion
1) 30 second
2) 25 second
3) 40 second
4) 80 second
3
29
If a first order reaction is 50% completed in 10 minute then how much time will it take for 87.5% completion
1) 20 minute
2) 25 minute
3) 30 minute
4) 40 minute
3
30
Half life for a first order reaction is 5 minute how much time taken for 93.75% completion
1) 10 minute
2) 20 minute
3) 40 minute
4) none
2
31
The half Life period of a substance is 50 minute at a certain initial concentration when concentration introduced to one up half life is found to 25 minutes order of reaction is
1) is zero
2) second
3) first
4) third
1
32
4
33
If 60% of a first order reaction was completed in 60 minutes 50% of the same reaction would be completed in approximately {log 4=0.60, log 5=0.69}
1) 45 minute
2) 60 minute
3) 50 minute
4) 40 minute
1
34
For a first order reaction the time taken to reduce the initial concentration to a factor of 1/4 is 10 minutes if the reaction if the reduction in concentration is carried out to a factor of 1/16 and time required will be
1) 10 minute
2) 20 minute
3) 15 minute
4) 60 minute
2
35
At 500 K the half Life period of a gaseous reaction at an initial pressure of 80 KPa is 350 sec if the initial pressure is 40 KPa the half Life period is 175 second the order of reaction is
1) 0
2)2
3) 1
4)3
1
36
Calculate the half life of second order reaction in terms of initial concentration [ A] and rate constant K
1) [A]/K
2)K[A]
3) 2[A]/K
4) none
4
37
1
38
1
39
4
40
1
41
2
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66問 • 1年前問題一覧
1
Units of rate of reaction
t
2
Rate of disappearance a rate of formation always equals for a given reaction in given time interval
f
3
Rate of reaction in terms of any of the reactant or product always comes out to be same
t
4
1
5
2
6
1
7
1
8
Calculate overall order of reaction
3
9
2
10
3
11
4
12
3
13
3
14
Recheck
1
15
BB
2
16
3
17
2
18
2
19
3
20
A: order of reaction may come out to be same as that of stochiometric coefficient
R: for elementary reaction of mass action is same as that of rate law
1
21
complex
22
4
23
2
24
2
25
1
26
For a zero order reaction50% completed in 10 minutes then how much time would it take for 75% completion
1) 20 minute
2) 40 minute
3) 15 minute
4) none
3
27
A first order reaction is 90% completed in 10 minutes how much time would it take for 99% completion1)
1) 15 minute
2) 20 minute
3) 25 minute
4) 50 minute
2
28
A first order reaction is 50% completed in 20 second then how much time will it take for 75% completion
1) 30 second
2) 25 second
3) 40 second
4) 80 second
3
29
If a first order reaction is 50% completed in 10 minute then how much time will it take for 87.5% completion
1) 20 minute
2) 25 minute
3) 30 minute
4) 40 minute
3
30
Half life for a first order reaction is 5 minute how much time taken for 93.75% completion
1) 10 minute
2) 20 minute
3) 40 minute
4) none
2
31
The half Life period of a substance is 50 minute at a certain initial concentration when concentration introduced to one up half life is found to 25 minutes order of reaction is
1) is zero
2) second
3) first
4) third
1
32
4
33
If 60% of a first order reaction was completed in 60 minutes 50% of the same reaction would be completed in approximately {log 4=0.60, log 5=0.69}
1) 45 minute
2) 60 minute
3) 50 minute
4) 40 minute
1
34
For a first order reaction the time taken to reduce the initial concentration to a factor of 1/4 is 10 minutes if the reaction if the reduction in concentration is carried out to a factor of 1/16 and time required will be
1) 10 minute
2) 20 minute
3) 15 minute
4) 60 minute
2
35
At 500 K the half Life period of a gaseous reaction at an initial pressure of 80 KPa is 350 sec if the initial pressure is 40 KPa the half Life period is 175 second the order of reaction is
1) 0
2)2
3) 1
4)3
1
36
Calculate the half life of second order reaction in terms of initial concentration [ A] and rate constant K
1) [A]/K
2)K[A]
3) 2[A]/K
4) none
4
37
1
38
1
39
4
40
1
41
2