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Byju's Answer
Standard XII
Chemistry
Elementary and Complex Reactions
Which stateme...
Question
Which statement is true about
n
/
p
ratio?
A
It increases by
β
-emission
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B
It increases by
α
-emission
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C
It increases by
γ
-emission
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D
None of the above
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Solution
The correct option is
C
It increases by
α
-emission
Effect of various decay process on n/p ratio :
−
increases by
α
-decay.
−
decreases by
β
-decay.
−
no change by
γ
-decay.
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0
Similar questions
Q.
An emission of
β
−
p
a
r
t
i
c
l
e
increases the atomic number of parent element by :
Q.
STATEMENT - 1 :
Z
X
A
undergoes 2
α
decays, 2
β
decays (negative
β
) and 2 decays. As a result the daughter product is
Z
−
2
Y
A
−
8
.
STATEMENT -2 : In
α
decay the mass number decreases by 4 unit and atomic number decreases by 2 unit. In
β
decay (negative
β
) the mass number remains unchanged and atomic number increases by 1 unit. In
γ
decay, mass number and atomic number remains unchanged.
Q.
The self disintegration, spontaneous emission of
α
,
β
and
γ
rays by nuclei of certain elements is _____________.
Q.
The temperature of the black body increases from T to
2
T. The factor by which the rate of emission will increases is?
Q.
Assertion :When there is emission of
β
-particle atomic increases by one unit.
14
6
C
⟶
14
7
N
+
0
−
1
e
Reason: Neutron is converted to proton
1
o
n
⟶
1
1
p
+
o
−
1
e
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