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JEE Advanced 2023 Paper 1 Solutions
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© examsnet.com
Question : 14
Total: 51
List-I shows different radioactive decay processes and List-II provides possible emitted particles. Match each entry in List-I with an appropriate entry from List-II, and choose the correct option.
List-I
List-II
(P)
92
238
U
→
91
234
Pa
(1) one
α
particle and one
β
+
particle
(Q)
82
214
Pb
→
82
210
Pb
(2) three
β
−
particles and one
α
particle
(R)
81
210
TI
→
82
206
Pb
(3) two
β
−
particles and one
α
particle
(S)
91
228
Pa
→
88
224
Ra
(4) one
α
particle and one
β
−
particle
(5) one
α
particle and two
β
+
particles
P
→
4
,
Q
→
3
,
R
→
2
,
S
→
1
P
→
4
,
Q
→
1
,
R
→
2
,
S
→
5
P
→
5
,
Q
→
3
,
R
→
1
,
S
→
4
P
→
5
,
Q
→
1
,
R
→
3
,
S
→
2
Validate
Solution:
∗ In
α
decay mass number decreases by 4 unit and atomic number decreases by 2 unit.
∗ In
β
−
decay mass number does not change but atomic number increases by 1 unit.
∗ In
β
+
decay mass number does not change but atomic number decreases by 1 unit.
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