p-Block Elements MCQs | Question – Paper 3


Topic: p-Block Elements, Test No.: 03, Total MCQs: 10

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Question 1
Which is the strongest acid in the following? [NEET 2013]
A
HClO3
B
HClO4
C
H2SO3
D
H2SO4
Question 2
Which of the following does not give oxygen on heating? [NEET 2013]
A
Zn(ClO3)2
B
K2Cr2O7
C
(NH4)2Cr2O7
D
KClO3
Question 3
XeF2 is isostructural with  [NEET 2013]
A
ICl2
B
SbCl3
C
BaCl2
D
TeF2
Question 4
The pair of species that has the same bond order in the following is: [NEET 2013]
A
O2, B2
B
CO, NO+
C
NO, CN
D
O2, N2
Question 5
Which one of the following is an amphoteric oxide? [AIEEE 2003]
A
ZnO
B
Na2O
C
SO2
D
B2O3
Question 6
Which blue liquid is obtained on reacting equimolar amounts of two gases at -30°C? [IIT-JEE 2005]
A
N2O
B
N2O3
C
N2O4
D
N2O5
Question 7
Which of the following is arranged in the increasing order of enthalpy of vaporisation? [AIIMS 2004]
A
NH3, AsH3, PH3
B
AsH3, PH3, NH3
C
NH3, PH3, AsH3
D
PH3, AsH3, NH3
Question 8
Molecules of a noble gas do not possess vibrational energy because a noble gas ______. [Karnataka CET 2010]
A
is chemically inert
B
is monoatomic
C
is diamagnetic
D
has completely filled shells
Question 9
Which of the following statements is true? [AIEEE 2006]
A
H3PO3 is a stronger acid than H2SO3
B
In aqueous medium HF is a stronger acid than HCl
C
HClO4 is a weaker acid than HClO3
D
HNO3 is a stronger acid than HNO2
Question 10
The decreasing values of bond angles from NH3 (106°) to SbH3 (101°) down group-15 of the periodic table is due to [AIEEE 2006]
A
increasing bp-bp repulsion
B
increasing p-orbital character in sp3
C
decreasing lp-bp repulsion
D
decreasing electronegativity
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