1
AIEEE 2002
MCQ (Single Correct Answer)
+4
-1
Change Language
For the reaction A + 2B $$\to$$ C, rate is given by R = [A] [B]2 then the order of the reaction is
A
3
B
6
C
5
D
7
2
AIEEE 2002
MCQ (Single Correct Answer)
+4
-1
Change Language
The differential rate law for the reaction H2 + I2 $$\to$$ 2HI is
A
$$ - {{d\left[ {{H_2}} \right]} \over {dt}}$$ = $$ - {{d\left[ {{I_2}} \right]} \over {dt}}$$ = $$ - {{d\left[ {{HI}} \right]} \over {dt}}$$
B
$$ {{d\left[ {{H_2}} \right]} \over {dt}}$$ = $$ {{d\left[ {{I_2}} \right]} \over {dt}}$$ = $$ {{d\left[ {{HI}} \right]} \over {dt}}$$
C
$${1 \over 2}{{d\left[ {{H_2}} \right]} \over {dt}}$$ = $${1 \over 2}{{d\left[ {{I_2}} \right]} \over {dt}}$$ = $$ - {{d\left[ {{HI}} \right]} \over {dt}}$$
D
$$ - 2{{d\left[ {{H_2}} \right]} \over {dt}}$$ = $$ - 2{{d\left[ {{I_2}} \right]} \over {dt}}$$ = $${{d\left[ {{HI}} \right]} \over {dt}}$$
3
AIEEE 2002
MCQ (Single Correct Answer)
+4
-1
Change Language
If half-life of a substance is 5 yrs, then the total amount of substance left after 15 years, when initial amount is 64 grams is
A
16 grams
B
2 grams
C
32 grams
D
8 grams
4
AIEEE 2002
MCQ (Single Correct Answer)
+4
-1
Change Language
$$\beta$$ - particle is emitted in radioactivity by
A
conversion of proton to neutron
B
from outermost orbit
C
conversion of neutron to proton
D
$$\beta$$ -particle is not emitted
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