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Test: Phosphorus and Its Compounds - JEE MCQ


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20 Questions MCQ Test - Test: Phosphorus and Its Compounds

Test: Phosphorus and Its Compounds for JEE 2024 is part of JEE preparation. The Test: Phosphorus and Its Compounds questions and answers have been prepared according to the JEE exam syllabus.The Test: Phosphorus and Its Compounds MCQs are made for JEE 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Phosphorus and Its Compounds below.
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Test: Phosphorus and Its Compounds - Question 1

Incorrect statement about :

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(Lewis base) can react with (Lewis acid).
Test: Phosphorus and Its Compounds - Question 2

The number of bonds and the oxidation state of phosphorus atom in pyrophosphoric acid respectively are :

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Oxidation State :
Each atom is bound to one oxygen
Oxygen Total

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Test: Phosphorus and Its Compounds - Question 3

can be removed from phosphine containing traces of it

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Both the methods (a) and (b) can be used. When passed through freezing mixture the present condenses and pure is obtained.
When passed through HI, is absorbed forming when treated with
(aq) yields pure phosphine.

Test: Phosphorus and Its Compounds - Question 4

For and , the correct choice is

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The structure of is as given below.

There are only two-OH groups and hence it is dibasic. The oxidation number of in this acid is , whereas may have oxidation state also. Therefore, can be oxidised which means is a reducing agent.

Test: Phosphorus and Its Compounds - Question 5
One mole of calcium phosphide on reaction with excess of water gives
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Test: Phosphorus and Its Compounds - Question 6
Which of the following is a cyclic phosphate?
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or It is metaphosphoric acid which is a cyclic phosphate.
Test: Phosphorus and Its Compounds - Question 7
is not used to dry gas because
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Test: Phosphorus and Its Compounds - Question 8
Which of the following is incorrect for white and red phosphorus ?
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Both white and red phosphorus are not soluble in only white phosphorus is soluble in
Test: Phosphorus and Its Compounds - Question 9

Which of the following oxy-acids has the maximum number of hydrogens directly attached to phosphorus?

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Test: Phosphorus and Its Compounds - Question 10
The element that can form multiple bonds with itself from the following is
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Among the given group-15 elements, nitrogen can form multiple bonds with itself. A strong multiple bonds are formed only when the overlapping is effective. i.e. overlapping orbitals are of similar energy and same symmetry. Nitrogen has small size and has orbitals (lower energy), shows bonding. Whereas, in the heavier elements the overlapping orbitals are bigger and are very high in energy as atomic size increases down the group. Thus, in these cases, effective overlapping for bond, does not takes place.
Test: Phosphorus and Its Compounds - Question 11
Which of the following compound has a P-P bond?
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Test: Phosphorus and Its Compounds - Question 12


Compound and will be respectively
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Test: Phosphorus and Its Compounds - Question 13

Superphosphate of lime is obtained from the reaction of :

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Ca3(PO4)+ 2H2SO+ 5H2O → Ca(H2PO4)2⋅H2O+2CaSO4⋅2H2O

Test: Phosphorus and Its Compounds - Question 14
Phosphine is not obtained by which of the following reaction?
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Red does not react with to give .
Test: Phosphorus and Its Compounds - Question 15
Phosphorus pentoxide is widely used as ............
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Phosphorous pentoxide is widely used as a dehydrating agent. Phosphorus pentoxide is a potent dehydrating agent as indicated by the exothermic nature of its hydrolysis:
Test: Phosphorus and Its Compounds - Question 16
Conc. is heated with to form :
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Test: Phosphorus and Its Compounds - Question 17

The P − P − P bond angle in white phosphorus is

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Test: Phosphorus and Its Compounds - Question 18
Poisonous form of phosphorus is
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The white phosphorus allotrope is the most reactive, least stable and most toxic of the three. It consists of four phosphorus molecules that chemically bond to form a tetrahedral shape.
Test: Phosphorus and Its Compounds - Question 19

The number of P − O − P bonds in cyclic metaphosphate ion is

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The cyclic metaphosphate ion is

Test: Phosphorus and Its Compounds - Question 20
Which of the following metaphosphate ion is not known to exist in free state?
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The free monometaphosphate ions does not exist. The metaphosphates form a family of ring compounds
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