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What are the features of a spontaneous nuclear process?

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Important Questions on Nuclear Chemistry

EASY

Chemistry>Physical Chemistry>Nuclear Chemistry>Nuclear Reactions

In nuclear transmutation

_{8} O^{16} {(A, B)}_{7} N^{13}

A

and

B

are respectively

EASY

Chemistry>Physical Chemistry>Nuclear Chemistry>Nuclear Reactions

In the nuclear reaction

{}_{13}{Al}^{27} + {}_{2}{He}^{4} ⟶ {}_{14}X^{30} + {}_{1}H^{1}, X

EASY

Chemistry>Physical Chemistry>Nuclear Chemistry>Nuclear Reactions

In the radioactive disintegration series

_{90}^{232} T h \to_{82}^{208} P b,

involving

α

and

β

decay, the total number of

α

and

β

particles emitted are

MEDIUM

Chemistry>Physical Chemistry>Nuclear Chemistry>Nuclear Reactions

The number of neutrons accompanying the formation of

_{54}^{139} Xe

and

_{38}^{94} Sr

from the absorption of a slow neutron by

_{92}^{235} U

, followed by nuclear fission is

EASY

Chemistry>Physical Chemistry>Nuclear Chemistry>Nuclear Reactions

The radioactive isotope

_{90}^{234} Th

undergoes two successive

β -

decay followed by

α

decay. The atomic number and the mass number respectively of the resulting isotope are

EASY

Chemistry>Physical Chemistry>Nuclear Chemistry>Nuclear Reactions

$_{z}^{m} A (half life 10 days) \overset{}{\to} {}_{Z - 4}^{m - 8}B + 2 ({}_{2}^{4}{He})$
Starting with one mole of A in a closed vessel at N.T.P., Helium gas collected after 20 days is:

EASY

Chemistry>Physical Chemistry>Nuclear Chemistry>Nuclear Reactions

The electron is

HARD

Chemistry>Physical Chemistry>Nuclear Chemistry>Nuclear Reactions

The overall separation factor necessary to achieve a product containing

99.7 %

by mass

U - 235

starting form natural uranium is-

MEDIUM

Chemistry>Physical Chemistry>Nuclear Chemistry>Nuclear Reactions

Fill in the blank :

_{92}^{235} U +_{0}^{1} n \to ? +_{36}^{92} Kr + 3_{0}^{1} n

MEDIUM

Chemistry>Physical Chemistry>Nuclear Chemistry>Nuclear Reactions

In the chain reaction involving fission of

_{92}^{235} U

as:

_{92}^{235} U +_{0}^{1} n \to_{56}^{140} B a +_{36}^{93} K r + 3_{0}^{1} n + E

Neutrons and energy produced at the

n^{t h}

step is-

EASY

Chemistry>Physical Chemistry>Nuclear Chemistry>Nuclear Reactions

_{11}^{23} N a

and

{}_{12}^{24}{M g}

are

MEDIUM

Chemistry>Physical Chemistry>Nuclear Chemistry>Nuclear Reactions

Hydrogen bomb is based on the principle of

EASY

Chemistry>Physical Chemistry>Nuclear Chemistry>Nuclear Reactions

Purple of cassius is-

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Chemistry>Physical Chemistry>Nuclear Chemistry>Nuclear Reactions

The half-life for decay of radioactive ${}^{14}C$ is 5730 years. An archaeological artifact containing wood has only 80% of the ${}^{14}C$ activity as found in living trees. The age of the artifact would be:
[Given: log 1.25 = 0.0969]

MEDIUM

Chemistry>Physical Chemistry>Nuclear Chemistry>Nuclear Reactions

In the chain reaction involving fission of

_{92}^{235} U

_{92}^{235} U +_{0}^{1} n \to_{56}^{140} B a +_{36}^{93} K r + 3_{0}^{1} n + E,

Neutrons and energy produced at the

n^{t h}

step is-

MEDIUM

Chemistry>Physical Chemistry>Nuclear Chemistry>Nuclear Reactions

_{11}^{23} Na

is the more stable isotope of Na. Find out the process by which

_{11}^{24} Na

can undergo radioactive decay.

EASY

Chemistry>Physical Chemistry>Nuclear Chemistry>Nuclear Reactions

Hydrogen bomb is based on the principle of

MEDIUM

Chemistry>Physical Chemistry>Nuclear Chemistry>Nuclear Reactions

The radio nuclide

{}_{90}^{234}{Th}

undergoes two successive

β^{-} -

decay and one

α -

decay respectively. The number of protons and mass number respectively of the resulting radio nuclide are:

MEDIUM

Chemistry>Physical Chemistry>Nuclear Chemistry>Nuclear Reactions

A photon of hard gamma radiation knocks a proton out of

_{12}^{24} Mg

the nucleus to form.

MEDIUM

Chemistry>Physical Chemistry>Nuclear Chemistry>Nuclear Reactions

The radionuclide

_{90}^{234}

TH undergoes two successive

β - decays

. followed by

α

Decay. The atomic number and the mass number respectively of the resulting radionuclide are

What are the features of a spontaneous nuclear process?

Important Questions on Nuclear Chemistry

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