The electron affinity value are negative for A. ( Be arrow Be^ - ) B. ( N arrow N^ - ) C. ( O arrow O^ 2- ) D. ( Na arrow Na^ - ) E. ( Al arrow Al^ - ) Choose the most appropriate answer from the options given below :

Correct answer: B. A, B and C only (A) Be+e^ - arrow Be^ - , E.A =- ive (B) N+e^ - arrow N^ - E.A =-ive (C) O+e^ - arrow O^ - O^ - +e^ - arrow O^ -2 E.A =- ive (D) Na+e^ - arrow Na^ - E.A =+ ive (E) A +e^ - arrow A ^ - E.A =+ ive

JEE Main 20246 AprilMorning Shift

Exam: JEE Main
Year: 2024
Date: 6 April
Shift: Morning Shift
Subject: Chemistry
Chapter: Classification of Elements and Periodicity in Properties

JEE Main 2024 · 6 April · Morning Shift · Chemistry · Classification of Elements and Periodicity in Properties

The electron affinity value are negative for A. ( Be arrow Be^ - )...

The electron affinity value are negative for A. (

\mathrm{Be} \rightarrow \mathrm{Be}^{-}

) B. (

\mathrm{N} \rightarrow \mathrm{N}^{-}

) C. (

\mathrm{O} \rightarrow \mathrm{O}^{2-}

) D. (

\mathrm{Na} \rightarrow \mathrm{Na}^{-}

) E. (

\mathrm{Al} \rightarrow \mathrm{Al}^{-}

) Choose the most appropriate answer from the options given below :

Options

AD and E only
BA, B and C only
CA and D only
DA, B, D and E only

Correct answer

B. A, B and C only

Step-by-step solution

(A)

\mathrm{Be}+\mathrm{e}^{-} \rightarrow \mathrm{Be}^{-}, \quad

E.A

=-

ive (B)

\mathrm{N}+\mathrm{e}^{-} \rightarrow \mathrm{N}^{-} \quad

E.A =-ive (C)

\mathrm{O}+\mathrm{e}^{-} \rightarrow \mathrm{O}^{-}

\mathrm{O}^{-}+\mathrm{e}^{-} \rightarrow \mathrm{O}^{-2} \quad

E.A

=-

ive (D)

\mathrm{Na}+\mathrm{e}^{-} \rightarrow \mathrm{Na}^{-} \quad

E.A

=+

ive (E)

\mathrm{A} \ell+\mathrm{e}^{-} \rightarrow \mathrm{A} \ell^{-} \quad

E.A

=+

ive

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