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CHXI11:THE P-BLOCK ELEMENTS

317015 Which of the following statements are correct for ${SO}_{2}$ gas ?
I. It acts as bleaching agent in moist conditions.
II. Its molecule has linear geometry.
III. Its dilute solution is used as disinfectant.
IV. It can be prepared by the reaction of dilute $H_{2} {SO}_{4}$ with metal sulphide.
The option with correct set of statement is

1 I and III

2 II and IV

3 I and IV

4 II and III

CHXI11:THE P-BLOCK ELEMENTS

317016 Surphur trioxide can be obtained by which of the following reaction?

1

{CaSO}_{4} + C \overset{Δ}{⟶}

2

{Fe}_{2} {({SO}_{4})}_{3} \overset{Δ}{⟶}

3

S + H_{2} {SO}_{4} \overset{Δ}{⟶}

4

H_{2} {SO}_{4} + {PCl}_{5} \overset{Δ}{⟶}

Explanation:

By heating ferric sulphate strongly, we get sulphur trioxide.
${Fe}_{2} {({SO}_{4})}_{3} \overset{Δ}{⟶} {Fe}_{2} O_{3} + 3 {SO}_{3}$

CHXI11:THE P-BLOCK ELEMENTS

317017 A certain compound when burnt gives three oxides. The first formed an acidic solution of low $pH$ , the second turned lime water milky and the third turned anhydrous ${CuSO}_{4}$ blue. The elements present in the compound are

1

S, C

and

H

respectively

2 C, S and H respectively

3 H, S and C respectively

4

S, H

and

C

respectively

Explanation:

Compound contains $S, C$ and $H$ on burning gives ${SO}_{2}, {CO}_{2}$ and $H_{2} O$
${SO}_{2}$ forms an acidic solution of low $pH$ .
${CO}_{2}$ turns lime water milky.
$H_{2} O$ truns anhydrous ${CuSO}_{4}$ blue.

CHXI11:THE P-BLOCK ELEMENTS

317018 The one that liberates ${SO}_{2}$ with dil. $H_{2} {SO}_{4}$ is

1

{Na}_{2} {SO}_{4}

2

{NaHSO}_{4}

3

{Na}_{2} {SO}_{3}

4

{Na}_{2} S

Explanation:

$N a_{2} S O_{3} + H_{2} S O_{4} (d i l .) \to N a_{2} S O_{4} + S O_{2} + H_{2} O$

CHXI11:THE P-BLOCK ELEMENTS

317015 Which of the following statements are correct for ${SO}_{2}$ gas ?
I. It acts as bleaching agent in moist conditions.
II. Its molecule has linear geometry.
III. Its dilute solution is used as disinfectant.
IV. It can be prepared by the reaction of dilute $H_{2} {SO}_{4}$ with metal sulphide.
The option with correct set of statement is

1 I and III

2 II and IV

3 I and IV

4 II and III

CHXI11:THE P-BLOCK ELEMENTS

317016 Surphur trioxide can be obtained by which of the following reaction?

1

{CaSO}_{4} + C \overset{Δ}{⟶}

2

{Fe}_{2} {({SO}_{4})}_{3} \overset{Δ}{⟶}

3

S + H_{2} {SO}_{4} \overset{Δ}{⟶}

4

H_{2} {SO}_{4} + {PCl}_{5} \overset{Δ}{⟶}

Explanation:

By heating ferric sulphate strongly, we get sulphur trioxide.
${Fe}_{2} {({SO}_{4})}_{3} \overset{Δ}{⟶} {Fe}_{2} O_{3} + 3 {SO}_{3}$

CHXI11:THE P-BLOCK ELEMENTS

317017 A certain compound when burnt gives three oxides. The first formed an acidic solution of low $pH$ , the second turned lime water milky and the third turned anhydrous ${CuSO}_{4}$ blue. The elements present in the compound are

1

S, C

and

H

respectively

2 C, S and H respectively

3 H, S and C respectively

4

S, H

and

C

respectively

Explanation:

Compound contains $S, C$ and $H$ on burning gives ${SO}_{2}, {CO}_{2}$ and $H_{2} O$
${SO}_{2}$ forms an acidic solution of low $pH$ .
${CO}_{2}$ turns lime water milky.
$H_{2} O$ truns anhydrous ${CuSO}_{4}$ blue.

CHXI11:THE P-BLOCK ELEMENTS

317018 The one that liberates ${SO}_{2}$ with dil. $H_{2} {SO}_{4}$ is

1

{Na}_{2} {SO}_{4}

2

{NaHSO}_{4}

3

{Na}_{2} {SO}_{3}

4

{Na}_{2} S

Explanation:

$N a_{2} S O_{3} + H_{2} S O_{4} (d i l .) \to N a_{2} S O_{4} + S O_{2} + H_{2} O$

CHXI11:THE P-BLOCK ELEMENTS

317015 Which of the following statements are correct for ${SO}_{2}$ gas ?
I. It acts as bleaching agent in moist conditions.
II. Its molecule has linear geometry.
III. Its dilute solution is used as disinfectant.
IV. It can be prepared by the reaction of dilute $H_{2} {SO}_{4}$ with metal sulphide.
The option with correct set of statement is

1 I and III

2 II and IV

3 I and IV

4 II and III

CHXI11:THE P-BLOCK ELEMENTS

317016 Surphur trioxide can be obtained by which of the following reaction?

1

{CaSO}_{4} + C \overset{Δ}{⟶}

2

{Fe}_{2} {({SO}_{4})}_{3} \overset{Δ}{⟶}

3

S + H_{2} {SO}_{4} \overset{Δ}{⟶}

4

H_{2} {SO}_{4} + {PCl}_{5} \overset{Δ}{⟶}

Explanation:

By heating ferric sulphate strongly, we get sulphur trioxide.
${Fe}_{2} {({SO}_{4})}_{3} \overset{Δ}{⟶} {Fe}_{2} O_{3} + 3 {SO}_{3}$

CHXI11:THE P-BLOCK ELEMENTS

317017 A certain compound when burnt gives three oxides. The first formed an acidic solution of low $pH$ , the second turned lime water milky and the third turned anhydrous ${CuSO}_{4}$ blue. The elements present in the compound are

1

S, C

and

H

respectively

2 C, S and H respectively

3 H, S and C respectively

4

S, H

and

C

respectively

Explanation:

Compound contains $S, C$ and $H$ on burning gives ${SO}_{2}, {CO}_{2}$ and $H_{2} O$
${SO}_{2}$ forms an acidic solution of low $pH$ .
${CO}_{2}$ turns lime water milky.
$H_{2} O$ truns anhydrous ${CuSO}_{4}$ blue.

CHXI11:THE P-BLOCK ELEMENTS

317018 The one that liberates ${SO}_{2}$ with dil. $H_{2} {SO}_{4}$ is

1

{Na}_{2} {SO}_{4}

2

{NaHSO}_{4}

3

{Na}_{2} {SO}_{3}

4

{Na}_{2} S

Explanation:

$N a_{2} S O_{3} + H_{2} S O_{4} (d i l .) \to N a_{2} S O_{4} + S O_{2} + H_{2} O$

CHXI11:THE P-BLOCK ELEMENTS

317015 Which of the following statements are correct for ${SO}_{2}$ gas ?
I. It acts as bleaching agent in moist conditions.
II. Its molecule has linear geometry.
III. Its dilute solution is used as disinfectant.
IV. It can be prepared by the reaction of dilute $H_{2} {SO}_{4}$ with metal sulphide.
The option with correct set of statement is

1 I and III

2 II and IV

3 I and IV

4 II and III

CHXI11:THE P-BLOCK ELEMENTS

317016 Surphur trioxide can be obtained by which of the following reaction?

1

{CaSO}_{4} + C \overset{Δ}{⟶}

2

{Fe}_{2} {({SO}_{4})}_{3} \overset{Δ}{⟶}

3

S + H_{2} {SO}_{4} \overset{Δ}{⟶}

4

H_{2} {SO}_{4} + {PCl}_{5} \overset{Δ}{⟶}

Explanation:

By heating ferric sulphate strongly, we get sulphur trioxide.
${Fe}_{2} {({SO}_{4})}_{3} \overset{Δ}{⟶} {Fe}_{2} O_{3} + 3 {SO}_{3}$

CHXI11:THE P-BLOCK ELEMENTS

317017 A certain compound when burnt gives three oxides. The first formed an acidic solution of low $pH$ , the second turned lime water milky and the third turned anhydrous ${CuSO}_{4}$ blue. The elements present in the compound are

1

S, C

and

H

respectively

2 C, S and H respectively

3 H, S and C respectively

4

S, H

and

C

respectively

Explanation:

Compound contains $S, C$ and $H$ on burning gives ${SO}_{2}, {CO}_{2}$ and $H_{2} O$
${SO}_{2}$ forms an acidic solution of low $pH$ .
${CO}_{2}$ turns lime water milky.
$H_{2} O$ truns anhydrous ${CuSO}_{4}$ blue.

CHXI11:THE P-BLOCK ELEMENTS

317018 The one that liberates ${SO}_{2}$ with dil. $H_{2} {SO}_{4}$ is

1

{Na}_{2} {SO}_{4}

2

{NaHSO}_{4}

3

{Na}_{2} {SO}_{3}

4

{Na}_{2} S

Explanation:

$N a_{2} S O_{3} + H_{2} S O_{4} (d i l .) \to N a_{2} S O_{4} + S O_{2} + H_{2} O$

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