JEE Main 2022 · 29 Jun · Shift 2 · Physics Q35

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PhysicsSingle correct+4 / -1Question 35 of 90

In the following nuclear reaction,
$D\xrightarrow{\alpha}D_1\xrightarrow{\beta^-}D_2\xrightarrow{\alpha}D_3\xrightarrow{\gamma}D_4$
Mass number of D is 182 and atomic number is 74. Mass number and atomic number of $D_4$ respectively will be ______

174 and 71

174 and 69

172 and 69

172 and 71

Answer and worked solution

Official answer: A

Track A and Z. $(182,74)\xrightarrow\alpha(178,72)\xrightarrow{\beta^-}(178,73)\xrightarrow\alpha(174,71)\xrightarrow\gamma(174,71)$ .

(A)

Topics:Radioactive decay

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JEE Main 2022 · 29 Jun · Shift 2, Physics question 35