WBJEE SERIES Chemistry
P Block Elements
18 previous year questions.
Volume: 18 Ques
Yield: Medium
High-Yield Trend
2
2018 3
2017 1
2016 2
2015 4
2013 2
2010 1
2009 2
2008 1
2007 Chapter Questions 18 MCQs
01
PYQ 2007
medium
chemistry ID: wbjee-20
Liquor ammonia is
1
ammonium hydroxide
2
liquefied ammonia gas
3
concentrated solution of in water
4
a solution of in alcohol
02
PYQ 2008
medium
chemistry ID: wbjee-20
Which one of the following pairs is obtained on heating ammonium dichromate?
1
and
2
and
3
and
4
NO and
03
PYQ 2008
medium
chemistry ID: wbjee-20
When is added to acidified solution of sodium nitrite, then
1
gas is liberated and is set free
2
gas is liberated and is produced
3
gas is liberated and is set free
4
gas is liberated and is produced
04
PYQ 2009
medium
chemistry ID: wbjee-20
Atoms in a molecule of white phosphorus are arranged regularly in the following way :
1
at the corners of a cube
2
at the corners of a octahedron
3
at the corners of a tetrahedron
4
at the centre and corners of a tetrahedron
05
PYQ 2010
medium
chemistry ID: wbjee-20
Which of the following is most abundant in the earth's crust ?
1
Boron
2
Aluminium
3
Gallium
4
Thallium
06
PYQ 2010
medium
chemistry ID: wbjee-20
is the anhydride of
1
2
3
4
07
PYQ 2013
medium
chemistry ID: wbjee-20
In diborane, the number of electrons that account for bonding in the bridges is
1
Six
2
Two
3
Eight
4
Four
08
PYQ 2013
medium
chemistry ID: wbjee-20
In borax the number of links and bonds present are, respectively,
1
Five and four
2
Four and five
3
Three and four
4
Five and five
09
PYQ 2013
medium
chemistry ID: wbjee-20
?Sulphan? is
1
a mixture of and
2
100% conc.
3
a mixture of gypsum and conc.
4
100% oleum (a mixture of 100% in 100% )
10
PYQ 2013
medium
chemistry ID: wbjee-20
Silicone oil is obtained from the hydrolysis and polymerisation of
1
trimethylchlorosilane and dimethydichlorosilane
2
trimethylchlorosilane and methylrichlorosilane
3
methyltrichlorosilane and dimethyldichlorosilane
4
triethylchlorosiland and diethyldichlrosilane
11
PYQ 2015
medium
chemistry ID: wbjee-20
Sulphuryl chloride reacts with white phosphorus to give
1
2
3
4
12
PYQ 2015
medium
chemistry ID: wbjee-20
Match the flame colours of the alkaline earth metal salts in the Bunsen burner.
1
A-(p), B-(r), C-(q)
2
A-(r), B-(p), C-(q)
3
A-(q), B-(r), C-(p)
4
A-(p), B-(q), C-(r)
13
PYQ 2016
medium
chemistry ID: wbjee-20
Of the following atoms, which one has the highest n/p ratio?
1
2
3
4
14
PYQ 2017
medium
chemistry ID: wbjee-20
is insoluble in cold water. Addition of increases its solubility due
1
Formation of soluble complex anions like
2
Oxidation of to
3
Formation of
4
Formation of polymeric lead complexes
15
PYQ 2017
medium
chemistry ID: wbjee-20
Of the following compounds, which one is the strongest Bronsted acid in aqueous solution?
1
2
3
4
16
PYQ 2017
medium
chemistry ID: wbjee-20
The shape of will be
1
Square pyramid
2
Trigonal bipyramidal
3
Planar
4
Pentagonal bipyramid
17
PYQ 2018
medium
chemistry ID: wbjee-20
White phosphorus has the following characteristics:
1
6 P - P single bonds
2
4 P - P single bonds
3
4 lone pair of electrons
4
P - P - P angle of
18
PYQ 2018
medium
chemistry ID: wbjee-20
is the anhydride of
1
2
3
4
About P Block Elements - WBJEE
P Block Elements is a vital chapter for WBJEE aspirants. Mastering the concepts covered in this chapter is essential for securing a top rank.
By rigorously practicing the previous year questions associated with this chapter, you can identify high-yield topics, understand the examiner's perspective, and boost your confidence during the actual exam.
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