p-Block Elements  MCQs

MCQs of p-Block Elements

Showing 91 to 100 out of 173 Questions
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91.
XeF6s+ H2Ol → AXeF6s+ 2H2Ol → BWhat is A & B ?
(a) XeOF4, XeO2F2
(b) XeO3, XeOF2
(c) XeOF2, XeOF4
(d) XeOF4, XeOF2
Answer:

Option (a)

92.
What is the formula of cryolite ?
(a) Na3AlF6
(b) Al2O3 • 2H2O
(c) K • AlSi2O3
(d) Al2O3
Answer:

Option (a)

93.
How many (σ) sigma bonds are present in P4O10 ?
(a) 6
(b) 8
(c) 18
(d) 16
Answer:

Option (d)

94.
Which compound have maximum value of bond energy ?
(a) HBr
(b) HF
(c) HI
(d) HCl
Answer:

Option (b)

95.
Which statement is correct for H3PO3 & H3PO4 ?
(a) H3PO3 is a mono basic and reducing agent.
(b) H3PO3 is dibasic & reducing agent.
(c) H3PO4 is tribasic and reducing agent.
(d) H3PO4 is a tri basic and oxidising agent.
Answer:

Option (b)

96.
How many H atoms are directly attached with P atom in hypophosphous acid ?
(a) 0
(b) 3
(c) 2
(d) 1
Answer:

Option (c)

97.
What is the product of reaction between excess xenon and fluorine at 673 K temperature ?
(a) XeF2
(b) XeF4
(c) XeF6
(d) Not given
Answer:

Option (a)

98.
Which type of hybridisation is present in iodine Pentachloride ?
(a) sp3d2
(b) sp3d
(c) dsp3
(d) d2sp3
Answer:

Option (a)

99.
For an element X if XCl3, X2O5 and Ca3X2 is possible but XCl5 is not possible, then what is X ?
(a) B
(b) Al
(c) N
(d) P
Answer:

Option (c)

100.
Which acid can be separated (isolated) in a pure form ?
(a) HClO2
(b) HClO
(c) HClO4
(d) HClO3
Answer:

Option (c)

Showing 91 to 100 out of 173 Questions
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