1
AIEEE 2007
MCQ (Single Correct Answer)
+4
-1
Which of the following nuclear reactions will generate an isotope?
A
neutron particle emission
B
positron emission
C
$$\alpha$$-particle emission
D
$$\beta$$-particle emission
2
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
3
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 $$\beta^-$$
4
AIEEE 2006
MCQ (Single Correct Answer)
+4
-1
Rate of a reaction can be expressed by Arrhenius equation as:
$$$k = A\,{e^{ - E/RT}}$$$ In this equation, E represents
A
the energy above which all the colliding molecules will react
B
the energy below which colliding molecules will not react
C
the total energy of the reacting molecules at a temperature, T
D
the fraction of molecules with energy greater than the activation energy of the reaction
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