Chemistry - Chemical Kinetics Question with Solution | TestHub

ChemistryChemical KineticsMiscellaneous/MixedMedium2 minQB

ChemistryMediummultiple choice

A radioactive element, $X$ , decays by the sequence and with half-lives, given below:

X ( $t_{1/2}$ = 30 min) $λ_{1}$ Y + $α$

Y ( $t_{1/2}$ = 2 days) $λ_{2}$ Z + 2 $β$

Which of the following statement(s) is/are incorrect?

Answer:

A, C, D

Solution:

$λ = \frac{0.693}{t _{1/2}} ⟹ λ_{1} > λ_{2}$

$_{Z_{1}}^{A_{1}} X_{Z_{1} - 2}^{A_{1} - 4} Y +_{2}^{4} He$

$_{Z_{1} - 2}^{A_{1} - 4} Y_{Z_{1}}^{A_{1} - 4} Z + 2_{_{- 1}}^{0} e$

Stream:JEESubject:ChemistryTopic:Chemical KineticsSubtopic:Miscellaneous/Mixed

⏱ 2mℹ️ Source: QB

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