1
AIEEE 2006
MCQ (Single Correct Answer)
+4
-1
A reaction was found to be second order with respect to the concentration of carbon monoxide. If the concentration of carbon monoxide is doubled, with everything else kept the same, the rate of reaction will
A
remain unchanged
B
triple
C
increase by a factor of 4
D
double
2
AIEEE 2006
MCQ (Single Correct Answer)
+4
-1
In the transformation of $${}_{92}^{238}U$$ to $${}_{92}^{234}U$$, if one emission is an α-particle, what should be the other emission(s)?
A
Two $$\beta^-$$
B
Two $$\beta^-$$ and one $$\beta^+$$
C
One $$\beta^-$$ and one $$\gamma$$
D
One $$\beta^+$$ and One $$\beta^-$$
3
AIEEE 2006
MCQ (Single Correct Answer)
+4
-1
The following mechanism has been proposed for the reaction of NO with Br2 to form NOBr:
NO(g) + Br2 (g) $$\leftrightharpoons$$ NOBr2 (g)
NOBr2 (g) + NO (g) $$\to$$ 2NOBr (g)
If the second step is the rate determining step, the order of the reaction with respect to NO(g) is
A
1
B
0
C
3
D
2
4
AIEEE 2006
MCQ (Single Correct Answer)
+4
-1
The increasing order of the first ionization enthalpies of the elements B, P, S and F (lowest first) is :
A
F < S < P < B
B
P < S < B < F
C
B < P < S < F
D
B < S < P < F
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