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1
BITSAT 2025
MCQ (Single Correct Answer)
+3
-1

Electron affinity is maximum when

A

O changes into $\mathrm{O}^{-}$

B

Cl changes into $\mathrm{Cl}^{-}$

C

F changes into $\mathrm{F}^{-}$

D

N changes into $\mathrm{N}^{-}$

2
BITSAT 2025
MCQ (Single Correct Answer)
+3
-1

The ionic radii of $\mathrm{N}^{3-}, \mathrm{O}^{2-}$ and $\mathrm{F}^{-}$follow the trend

A

$\mathrm{N}^{3-}>\mathrm{O}^{2-}>\mathrm{F}^{-}$

B

$\mathrm{F}^{-}>\mathrm{N}^{3-}>\mathrm{O}^{2-}$

C

$\mathrm{O}^{2-}>\mathrm{F}^{-}>\mathrm{N}^{3-}$

D

$\mathrm{F}^{-}>\mathrm{O}^{2-}>\mathrm{N}^{3-}$

3
BITSAT 2024
MCQ (Single Correct Answer)
+3
-1
Electron affinity is positive, when
A
$ \mathrm{O}^{2} $ changes into $ \mathrm{O}^{-} $
B
$ \mathrm{O}^{-} $changes to $ \mathrm{O}^{2-} $
C
$ \mathrm{O}^{\text {changes into } \mathrm{O}^{+}} $
D
O changes to $ \mathrm{O}^{2+} $
4
BITSAT 2024
MCQ (Single Correct Answer)
+3
-1
The ionic radii in $ \mathring{A} $ of $ \mathrm{N}^{3-}, \mathrm{O}^{2-} $ and $ \mathrm{F}^{-} $are respectively.
A
$ 1.71,1.40 $ and 1.36
B
$ 1.71,1.36 $ and 1.40
C
$ 1.36,1.40 $ and 1.71
D
$ 1.36,1.71 $ and 1.40
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