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JEE CHEMISTRY MCQ: CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

1 Medium

1 of 1

Analyzing +4 | -1

Consider following orders against the mentioned property:

I.

{Mg} < {Si} < {Al} < {S} < {P}

(

2^{\text {nd }}

ionisation potential)

II.

{Na}_2 {O} < {MgO} < {Al}_2 {O}_3 < {P}_2 {O}_5

(Acidic strength)

III.

{C} < {N} < {O} < {F}

{ }^{\text {st }}

Electron affinity)

The incorrect order(s) is/are

View answer and explanation

Correct option: C

Only I and III

Option C is correct. Orders I and III are incorrect. The correct order for 2nd ionization potential is Mg < Si < Al < P < S, and the correct order for electron affinity is N < C < O < F.

JEE CHEMISTRY MCQ: CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

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