JEE CHEMISTRY MCQ: S-BLOCK ELEMENTS

1 Easy

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Analyzing +4 | -1

(X),(Y),(Z)

are elements in the third period. Oxide of

(X)

is ionic, that of

(Y)

is amphoteric, and of

(Z)

a giant molecule.

(X),(Y)

and

(Z)

will have atomic numbers in the order:

View answer and explanation

Correct option: A

(X) < (Y) < (Z)

Option B (

OF_2

) is correct because as the electronegativity of the side atom increases, the bond angle decreases.

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(A)

(A)

\mathrm{K}_2 \mathrm{CrO}_4

\mathrm{AgNO}_3

\mathrm{H}_2 \mathrm{~S}

\left(\mathrm{NH}_4\right)_2 \mathrm{CO}_3

\mathrm{NH}_4 \mathrm{OH}

0.297 \mathrm{~g}

(A)

0.197 \mathrm{~g}

(B)

(A)

\mathrm{KCl}

\mathrm{NaCl}

{LiCl}

{Li}

{Cl}