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JEE CHEMISTRY MCQ: P-BLOCK ELEMENTS

1 Medium

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Analyzing +4 | -1

Assertion (A): When

{H}_2 {S}({g})

is passed into aqueous

{ZnCl}_2

, solution,

{ZnS}

is precipitated.

Reason (R) :

{ZnS}

is insoluble in dil.

{HCl}

.

View answer and explanation

Correct option: D

\mathbf{A}

and

\mathbf{R}

both are false.

Option D (

\mathbf{A}

and

\mathbf{R}

both are false) is correct because

ZnS

does not precipitate when

H_2S

is passed into

ZnCl_2

solution, and

ZnS

is soluble in dilute

HCl

.

More Questions from P-BLOCK ELEMENTS

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The gas used for inflating the tyres of aeroplanes is: Which of the following is correct stability order of oxides of

17^{\text {th }}

group elements is: Assertion: Ozone is a powerful oxidising agent in comparison to

{O}_2

.

Reason: Ozone is diamagnetic but

{O}_2

is paramagnetic. Which of the following is kept in water?

\mathrm{C}{\mathrm{N}^ - }

{\mathrm{N}_2}

are isoelectronic but in contrast to

\mathrm{C}{\mathrm{N}^ - },\mathrm{\;}{\mathrm{N}_2}

is chemically inert because of: Consider the following statements

(i) Reaction

2 {Fe}^{3+}+{SO}_2+2 {H}_2 {O} \rightarrow 2 {Fe}^{2+}+{SO}_4^{2-}+4 {H}^{+}

shows reducing character of sulphur dioxide

(ii)

{H}_2 {~S}_2 {O}_8

{S}={O}

{S}-{OH}

{O}-

{O}

{NH}_3

gas can be dried effectively by using conc.

{H}_2 {SO}_4

.

(iv) One of the major use of

{H}_2 {SO}_4

is in the manufacture of fertilizers.

Which of the following is the correct code for the statements above?