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CHXI11:THE P-BLOCK ELEMENTS

316826 Which of following is not a property of red phosphorus?

1 Insoluble in carbon disulphide

2 It does not show chemiluminescence by action of air

3 It forms phosphine when treated with hot sodium hydroxide solution

4 It is non-poisonous

MHTCET - 2019

CHXI11:THE P-BLOCK ELEMENTS

316827 The property of white phosphorus that is common to red phosphorus is

1 It is soluble in carbon disuphide

2 It shows chemiluminescence

3 It reacts with hot caustic soda solution to give phosphine

4 It burns when heated in air

CHXI11:THE P-BLOCK ELEMENTS

316842 Identify the compound, in which phosphorus exists in the oxidation state of +1 .

1 Phosphonic acid

(H_{3} {PO}_{3})

2 Phosphinic acid

(H_{3} {PO}_{2})

3 Pyrophosphorus acid

(H_{4} P_{2} O_{5})

4 Orthophosphoric acid

(H_{3} {PO}_{4})

MHTCET - 2017

CHXI11:THE P-BLOCK ELEMENTS

316828 One mole of $P_{4}$ reacts with 8 moles of ${SOCl}_{2}$ to give 4 moles of A , x mole ${SO}_{2}$ and 2 moles of B. A, B and x respectively are

1

{PCl}_{3}, S_{2} {Cl}_{2}

and 2

2

{PCl}_{3}, S_{2} {Cl}_{2}

and 4

3

{POCl}_{3}, S_{2} {Cl}_{2}

and 4

4

{POCl}_{3}, S_{2} {Cl}_{2}

and 2

Explanation:

$P_{4} + 8 S O C l_{2} \to 4 A + x S O_{2} + 2 B$
$P_{4} + 8 {SOCl}_{2} \to 4 {PCl}_{3} + 4 {SO}_{2} + 2 S_{2} {Cl}_{2}$
$A = {PCl}_{3}, B = S_{2} {Cl}_{2}, x = 4$

JEE - 2023

CHXI11:THE P-BLOCK ELEMENTS

316826 Which of following is not a property of red phosphorus?

1 Insoluble in carbon disulphide

2 It does not show chemiluminescence by action of air

3 It forms phosphine when treated with hot sodium hydroxide solution

4 It is non-poisonous

MHTCET - 2019

CHXI11:THE P-BLOCK ELEMENTS

316827 The property of white phosphorus that is common to red phosphorus is

1 It is soluble in carbon disuphide

2 It shows chemiluminescence

3 It reacts with hot caustic soda solution to give phosphine

4 It burns when heated in air

CHXI11:THE P-BLOCK ELEMENTS

316842 Identify the compound, in which phosphorus exists in the oxidation state of +1 .

1 Phosphonic acid

(H_{3} {PO}_{3})

2 Phosphinic acid

(H_{3} {PO}_{2})

3 Pyrophosphorus acid

(H_{4} P_{2} O_{5})

4 Orthophosphoric acid

(H_{3} {PO}_{4})

MHTCET - 2017

CHXI11:THE P-BLOCK ELEMENTS

316828 One mole of $P_{4}$ reacts with 8 moles of ${SOCl}_{2}$ to give 4 moles of A , x mole ${SO}_{2}$ and 2 moles of B. A, B and x respectively are

1

{PCl}_{3}, S_{2} {Cl}_{2}

and 2

2

{PCl}_{3}, S_{2} {Cl}_{2}

and 4

3

{POCl}_{3}, S_{2} {Cl}_{2}

and 4

4

{POCl}_{3}, S_{2} {Cl}_{2}

and 2

Explanation:

$P_{4} + 8 S O C l_{2} \to 4 A + x S O_{2} + 2 B$
$P_{4} + 8 {SOCl}_{2} \to 4 {PCl}_{3} + 4 {SO}_{2} + 2 S_{2} {Cl}_{2}$
$A = {PCl}_{3}, B = S_{2} {Cl}_{2}, x = 4$

JEE - 2023

CHXI11:THE P-BLOCK ELEMENTS

316826 Which of following is not a property of red phosphorus?

1 Insoluble in carbon disulphide

2 It does not show chemiluminescence by action of air

3 It forms phosphine when treated with hot sodium hydroxide solution

4 It is non-poisonous

MHTCET - 2019

CHXI11:THE P-BLOCK ELEMENTS

316827 The property of white phosphorus that is common to red phosphorus is

1 It is soluble in carbon disuphide

2 It shows chemiluminescence

3 It reacts with hot caustic soda solution to give phosphine

4 It burns when heated in air

CHXI11:THE P-BLOCK ELEMENTS

316842 Identify the compound, in which phosphorus exists in the oxidation state of +1 .

1 Phosphonic acid

(H_{3} {PO}_{3})

2 Phosphinic acid

(H_{3} {PO}_{2})

3 Pyrophosphorus acid

(H_{4} P_{2} O_{5})

4 Orthophosphoric acid

(H_{3} {PO}_{4})

MHTCET - 2017

CHXI11:THE P-BLOCK ELEMENTS

316828 One mole of $P_{4}$ reacts with 8 moles of ${SOCl}_{2}$ to give 4 moles of A , x mole ${SO}_{2}$ and 2 moles of B. A, B and x respectively are

1

{PCl}_{3}, S_{2} {Cl}_{2}

and 2

2

{PCl}_{3}, S_{2} {Cl}_{2}

and 4

3

{POCl}_{3}, S_{2} {Cl}_{2}

and 4

4

{POCl}_{3}, S_{2} {Cl}_{2}

and 2

Explanation:

$P_{4} + 8 S O C l_{2} \to 4 A + x S O_{2} + 2 B$
$P_{4} + 8 {SOCl}_{2} \to 4 {PCl}_{3} + 4 {SO}_{2} + 2 S_{2} {Cl}_{2}$
$A = {PCl}_{3}, B = S_{2} {Cl}_{2}, x = 4$

JEE - 2023

CHXI11:THE P-BLOCK ELEMENTS

316826 Which of following is not a property of red phosphorus?

1 Insoluble in carbon disulphide

2 It does not show chemiluminescence by action of air

3 It forms phosphine when treated with hot sodium hydroxide solution

4 It is non-poisonous

MHTCET - 2019

CHXI11:THE P-BLOCK ELEMENTS

316827 The property of white phosphorus that is common to red phosphorus is

1 It is soluble in carbon disuphide

2 It shows chemiluminescence

3 It reacts with hot caustic soda solution to give phosphine

4 It burns when heated in air

CHXI11:THE P-BLOCK ELEMENTS

316842 Identify the compound, in which phosphorus exists in the oxidation state of +1 .

1 Phosphonic acid

(H_{3} {PO}_{3})

2 Phosphinic acid

(H_{3} {PO}_{2})

3 Pyrophosphorus acid

(H_{4} P_{2} O_{5})

4 Orthophosphoric acid

(H_{3} {PO}_{4})

MHTCET - 2017

CHXI11:THE P-BLOCK ELEMENTS

316828 One mole of $P_{4}$ reacts with 8 moles of ${SOCl}_{2}$ to give 4 moles of A , x mole ${SO}_{2}$ and 2 moles of B. A, B and x respectively are

1

{PCl}_{3}, S_{2} {Cl}_{2}

and 2

2

{PCl}_{3}, S_{2} {Cl}_{2}

and 4

3

{POCl}_{3}, S_{2} {Cl}_{2}

and 4

4

{POCl}_{3}, S_{2} {Cl}_{2}

and 2

Explanation:

$P_{4} + 8 S O C l_{2} \to 4 A + x S O_{2} + 2 B$
$P_{4} + 8 {SOCl}_{2} \to 4 {PCl}_{3} + 4 {SO}_{2} + 2 S_{2} {Cl}_{2}$
$A = {PCl}_{3}, B = S_{2} {Cl}_{2}, x = 4$

JEE - 2023

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