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CHXI11:THE P-BLOCK ELEMENTS

316246 Which among the following compounds does not act as reducing agent?

1

H_{2} O

2

H_{2} S

3

H_{2} Se

4

H_{2} T e

Explanation:

All the hydrides, except water $(H_{2} O)$ of group 16 elements acts as a reducing agents. The reducing character increases from $H_{2} S$ to $H_{2} Te$ . This is due to decrease in stability of hydride.

MHTCET - 2017

CHXI11:THE P-BLOCK ELEMENTS

316247 The correct increasing order of dipole moments of the following is

1

H_{2} O < H_{2} S < H_{2} Se < H_{2} Te

2

H_{2} T e < H_{2} S e < H_{2} S < H_{2} O

3

H_{2} Se < H_{2} Te < H_{2} O < H_{2} S

4

H_{2} S < H_{2} O < H_{2} Se < H_{2} Te

CHXI11:THE P-BLOCK ELEMENTS

316248 Read the Assertion and Reason carefully to mark the correct option out of the options given below.
Assertion :
$H_{2} T e$ is more acidic than $H_{2} S$
Reason :
Bond dissociation enthalpy of $H_{2} T e$ is lower than $H_{2} S$

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.

2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.

3 Assertion is correct but Reason is incorrect.

4 Assertion is incorrect but reason is correct.

Explanation:

From $H_{2} O$ to $H_{2} Te$ , acidic strength increases as $E - H$ bond energy decreases ( E is group 16 element) due to increased atomic size of E.
So, the correct option is (1).

JEE Main - 2024

CHXI11:THE P-BLOCK ELEMENTS

316263 Which halogen forms an oxyacid that contains the halogen atom in tripositive oxidation state?

1 Fluorine

2 Chlorine

3 Bromine

4 Iodine

Explanation:

The oxyacid of chlorine atom has tripositive oxidation state of $Cl$ .
e.g. ${HClO}_{2}; Cl$ is in +3 oxidation state.

CHXI11:THE P-BLOCK ELEMENTS

316246 Which among the following compounds does not act as reducing agent?

1

H_{2} O

2

H_{2} S

3

H_{2} Se

4

H_{2} T e

Explanation:

All the hydrides, except water $(H_{2} O)$ of group 16 elements acts as a reducing agents. The reducing character increases from $H_{2} S$ to $H_{2} Te$ . This is due to decrease in stability of hydride.

MHTCET - 2017

CHXI11:THE P-BLOCK ELEMENTS

316247 The correct increasing order of dipole moments of the following is

1

H_{2} O < H_{2} S < H_{2} Se < H_{2} Te

2

H_{2} T e < H_{2} S e < H_{2} S < H_{2} O

3

H_{2} Se < H_{2} Te < H_{2} O < H_{2} S

4

H_{2} S < H_{2} O < H_{2} Se < H_{2} Te

CHXI11:THE P-BLOCK ELEMENTS

316248 Read the Assertion and Reason carefully to mark the correct option out of the options given below.
Assertion :
$H_{2} T e$ is more acidic than $H_{2} S$
Reason :
Bond dissociation enthalpy of $H_{2} T e$ is lower than $H_{2} S$

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.

2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.

3 Assertion is correct but Reason is incorrect.

4 Assertion is incorrect but reason is correct.

Explanation:

From $H_{2} O$ to $H_{2} Te$ , acidic strength increases as $E - H$ bond energy decreases ( E is group 16 element) due to increased atomic size of E.
So, the correct option is (1).

JEE Main - 2024

CHXI11:THE P-BLOCK ELEMENTS

316263 Which halogen forms an oxyacid that contains the halogen atom in tripositive oxidation state?

1 Fluorine

2 Chlorine

3 Bromine

4 Iodine

Explanation:

The oxyacid of chlorine atom has tripositive oxidation state of $Cl$ .
e.g. ${HClO}_{2}; Cl$ is in +3 oxidation state.

CHXI11:THE P-BLOCK ELEMENTS

316246 Which among the following compounds does not act as reducing agent?

1

H_{2} O

2

H_{2} S

3

H_{2} Se

4

H_{2} T e

Explanation:

All the hydrides, except water $(H_{2} O)$ of group 16 elements acts as a reducing agents. The reducing character increases from $H_{2} S$ to $H_{2} Te$ . This is due to decrease in stability of hydride.

MHTCET - 2017

CHXI11:THE P-BLOCK ELEMENTS

316247 The correct increasing order of dipole moments of the following is

1

H_{2} O < H_{2} S < H_{2} Se < H_{2} Te

2

H_{2} T e < H_{2} S e < H_{2} S < H_{2} O

3

H_{2} Se < H_{2} Te < H_{2} O < H_{2} S

4

H_{2} S < H_{2} O < H_{2} Se < H_{2} Te

CHXI11:THE P-BLOCK ELEMENTS

316248 Read the Assertion and Reason carefully to mark the correct option out of the options given below.
Assertion :
$H_{2} T e$ is more acidic than $H_{2} S$
Reason :
Bond dissociation enthalpy of $H_{2} T e$ is lower than $H_{2} S$

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.

2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.

3 Assertion is correct but Reason is incorrect.

4 Assertion is incorrect but reason is correct.

Explanation:

From $H_{2} O$ to $H_{2} Te$ , acidic strength increases as $E - H$ bond energy decreases ( E is group 16 element) due to increased atomic size of E.
So, the correct option is (1).

JEE Main - 2024

CHXI11:THE P-BLOCK ELEMENTS

316263 Which halogen forms an oxyacid that contains the halogen atom in tripositive oxidation state?

1 Fluorine

2 Chlorine

3 Bromine

4 Iodine

Explanation:

The oxyacid of chlorine atom has tripositive oxidation state of $Cl$ .
e.g. ${HClO}_{2}; Cl$ is in +3 oxidation state.

CHXI11:THE P-BLOCK ELEMENTS

316246 Which among the following compounds does not act as reducing agent?

1

H_{2} O

2

H_{2} S

3

H_{2} Se

4

H_{2} T e

Explanation:

All the hydrides, except water $(H_{2} O)$ of group 16 elements acts as a reducing agents. The reducing character increases from $H_{2} S$ to $H_{2} Te$ . This is due to decrease in stability of hydride.

MHTCET - 2017

CHXI11:THE P-BLOCK ELEMENTS

316247 The correct increasing order of dipole moments of the following is

1

H_{2} O < H_{2} S < H_{2} Se < H_{2} Te

2

H_{2} T e < H_{2} S e < H_{2} S < H_{2} O

3

H_{2} Se < H_{2} Te < H_{2} O < H_{2} S

4

H_{2} S < H_{2} O < H_{2} Se < H_{2} Te

CHXI11:THE P-BLOCK ELEMENTS

316248 Read the Assertion and Reason carefully to mark the correct option out of the options given below.
Assertion :
$H_{2} T e$ is more acidic than $H_{2} S$
Reason :
Bond dissociation enthalpy of $H_{2} T e$ is lower than $H_{2} S$

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.

2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.

3 Assertion is correct but Reason is incorrect.

4 Assertion is incorrect but reason is correct.

Explanation:

From $H_{2} O$ to $H_{2} Te$ , acidic strength increases as $E - H$ bond energy decreases ( E is group 16 element) due to increased atomic size of E.
So, the correct option is (1).

JEE Main - 2024

CHXI11:THE P-BLOCK ELEMENTS

316263 Which halogen forms an oxyacid that contains the halogen atom in tripositive oxidation state?

1 Fluorine

2 Chlorine

3 Bromine

4 Iodine

Explanation:

The oxyacid of chlorine atom has tripositive oxidation state of $Cl$ .
e.g. ${HClO}_{2}; Cl$ is in +3 oxidation state.

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