Phosphorus and Its Compounds
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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
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 \(\left(\mathrm{H}_{3} \mathrm{PO}_{3}\right)\)
2 Phosphinic acid \(\left(\mathrm{H}_{3} \mathrm{PO}_{2}\right)\)
3 Pyrophosphorus acid \(\left(\mathrm{H}_{4} \mathrm{P}_{2} \mathrm{O}_{5}\right)\)
4 Orthophosphoric acid \(\left(\mathrm{H}_{3} \mathrm{PO}_{4}\right)\)
CHXI11:THE P-BLOCK ELEMENTS

316828 One mole of \(\mathrm{P}_{4}\) reacts with 8 moles of \(\mathrm{SOCl}_{2}\) to give 4 moles of A , x mole \(\mathrm{SO}_{2}\) and 2 moles of B. A, B and x respectively are

1 \(\mathrm{PCl}_{3}, \mathrm{~S}_{2} \mathrm{Cl}_{2}\) and 2
2 \(\mathrm{PCl}_{3}, \mathrm{~S}_{2} \mathrm{Cl}_{2}\) and 4
3 \(\mathrm{POCl}_{3}, \mathrm{~S}_{2} \mathrm{Cl}_{2}\) and 4
4 \(\mathrm{POCl}_{3}, \mathrm{~S}_{2} \mathrm{Cl}_{2}\) and 2
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
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 \(\left(\mathrm{H}_{3} \mathrm{PO}_{3}\right)\)
2 Phosphinic acid \(\left(\mathrm{H}_{3} \mathrm{PO}_{2}\right)\)
3 Pyrophosphorus acid \(\left(\mathrm{H}_{4} \mathrm{P}_{2} \mathrm{O}_{5}\right)\)
4 Orthophosphoric acid \(\left(\mathrm{H}_{3} \mathrm{PO}_{4}\right)\)
CHXI11:THE P-BLOCK ELEMENTS

316828 One mole of \(\mathrm{P}_{4}\) reacts with 8 moles of \(\mathrm{SOCl}_{2}\) to give 4 moles of A , x mole \(\mathrm{SO}_{2}\) and 2 moles of B. A, B and x respectively are

1 \(\mathrm{PCl}_{3}, \mathrm{~S}_{2} \mathrm{Cl}_{2}\) and 2
2 \(\mathrm{PCl}_{3}, \mathrm{~S}_{2} \mathrm{Cl}_{2}\) and 4
3 \(\mathrm{POCl}_{3}, \mathrm{~S}_{2} \mathrm{Cl}_{2}\) and 4
4 \(\mathrm{POCl}_{3}, \mathrm{~S}_{2} \mathrm{Cl}_{2}\) and 2
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
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 \(\left(\mathrm{H}_{3} \mathrm{PO}_{3}\right)\)
2 Phosphinic acid \(\left(\mathrm{H}_{3} \mathrm{PO}_{2}\right)\)
3 Pyrophosphorus acid \(\left(\mathrm{H}_{4} \mathrm{P}_{2} \mathrm{O}_{5}\right)\)
4 Orthophosphoric acid \(\left(\mathrm{H}_{3} \mathrm{PO}_{4}\right)\)
CHXI11:THE P-BLOCK ELEMENTS

316828 One mole of \(\mathrm{P}_{4}\) reacts with 8 moles of \(\mathrm{SOCl}_{2}\) to give 4 moles of A , x mole \(\mathrm{SO}_{2}\) and 2 moles of B. A, B and x respectively are

1 \(\mathrm{PCl}_{3}, \mathrm{~S}_{2} \mathrm{Cl}_{2}\) and 2
2 \(\mathrm{PCl}_{3}, \mathrm{~S}_{2} \mathrm{Cl}_{2}\) and 4
3 \(\mathrm{POCl}_{3}, \mathrm{~S}_{2} \mathrm{Cl}_{2}\) and 4
4 \(\mathrm{POCl}_{3}, \mathrm{~S}_{2} \mathrm{Cl}_{2}\) and 2
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
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
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 \(\left(\mathrm{H}_{3} \mathrm{PO}_{3}\right)\)
2 Phosphinic acid \(\left(\mathrm{H}_{3} \mathrm{PO}_{2}\right)\)
3 Pyrophosphorus acid \(\left(\mathrm{H}_{4} \mathrm{P}_{2} \mathrm{O}_{5}\right)\)
4 Orthophosphoric acid \(\left(\mathrm{H}_{3} \mathrm{PO}_{4}\right)\)
CHXI11:THE P-BLOCK ELEMENTS

316828 One mole of \(\mathrm{P}_{4}\) reacts with 8 moles of \(\mathrm{SOCl}_{2}\) to give 4 moles of A , x mole \(\mathrm{SO}_{2}\) and 2 moles of B. A, B and x respectively are

1 \(\mathrm{PCl}_{3}, \mathrm{~S}_{2} \mathrm{Cl}_{2}\) and 2
2 \(\mathrm{PCl}_{3}, \mathrm{~S}_{2} \mathrm{Cl}_{2}\) and 4
3 \(\mathrm{POCl}_{3}, \mathrm{~S}_{2} \mathrm{Cl}_{2}\) and 4
4 \(\mathrm{POCl}_{3}, \mathrm{~S}_{2} \mathrm{Cl}_{2}\) and 2