In the decay sequence, 92 238 U xrightarrow -x 1 90 234 Th xrightarrow -x 2 91 234 Pa xrightarrow -x 3 234 Z xrightarrow - x 4 90 230 Th x 1 , x 2 , x 3 and x 4 are particles /radiation emitted by the respective isotopes. The correct option(s) is(are)

x 1 will deflect towards negatively charged plate

Chemistry · Structure of Atom

JEE Advanced 2019 — Paper 1 — Question 24

In the decay sequence,

${ }_{92}^{238} \mathrm{U} \xrightarrow{-x_{1}}{ }_{90}^{234} \mathrm{Th} \xrightarrow{-x_{2}}{ }_{91}^{234} \mathrm{~Pa} \xrightarrow{-x_{3}}{ }^{234} \mathrm{Z} \xrightarrow{-\mathrm{x}_{4}}{ }_{90}^{230} \mathrm{Th}$

$\mathrm{x}_{1}, \mathrm{x}_{2}, \mathrm{x}_{3}$ and $\mathrm{x}_{4}$ are particles /radiation emitted by the respective isotopes. The correct option(s) is(are)

Option A:
$x_{3}$ is $\gamma$ -ray
Option B:
Z is an isotope of uranium
Correct
Option C:
$\mathrm{x}_{2}$ is $\beta^{-}$
Correct
Option D:
$x_{1}$ will deflect towards negatively charged plate
Correct

Answer: B, C, D

Step-by-step solution

$\mathrm{X}_{1}=\alpha$

$\mathrm{X}_{2}=\beta$

$X_{3}=\beta$

$X_{4}=\alpha$

Answer key and solution verified before publishing.

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Exam: JEE Advanced 2019
Paper: Paper 1
Subject: Chemistry
Chapter: Structure of Atom
Topic: Subatomic Particles