1. Among the following which group is not present in P – Block.
Group 12
Group
13
Group
15
Group
16
2.
The general electronic configuration of group 13 is…
Ns2nP2
nS2nP1
nS3nP2
nS2nP3
3.
The atomic radius increases from Boron to Thallium due to…
Dynamic
effect
Thermodynamic
effect
Screening effect
None
of above
4.
In group 13, among the following which has highest Ionization Potential?
Aluminium
Boron
Thallium
Indium
5.
Oxidation state of Boron is…
-3
+2
+3
None
of above
6.
Electropositive character from Boron to Thallium…
Decreases
Increases
Remains
constant
None
of above
7. Formation of Ionic Compounds is depends
upon…
Electropositive character
Electronegative
character
Both
of above
None
of above
8.
Boron to Thallium electropositive character…
Decreases
Increases
Remain
constant
Remains
unchanged
9.
Among the following Covalent Bonding is formed by…
Aluminium
Boron
Indium
Thallium
10.
Among the following which has low reducing character?
Gallium
Indium
Boron
Aluminium
11.
Among the following which one has lowest Ionization Potential?
Thallium
Boron
Aluminium
Gallium
12.
Among the following which one is most electropositive?
Thallium
Gallium
Indium
Aluminium
13.
Among the following which is most electronegative?
Boron
Aluminium
Thallium
Gallium
14.
Which medium is used to form esters of Orthoboric Acid?
Basic
medium
Acidic medium
Both
A & B
None
of above
15. Among the following which form of
Aluminum is stable at high temperature?
α Al2O3
β
Al2O3
λ
Al2O3
None
of above
16.
In the structure of B2H6 the number of B – B bonds are…
1
3
0
2
17.
The number of terminal Hydrogen atoms in the structure of B2H6
are…
4
5
6
0
18.
The number of bridged H Atoms in the structure of B2H6
are…
1
2
3
0
19. Valence orbitals of each Boron atoms in B2H6 are…
SP Hybridised
SP2 hybridized
SP3 hybridized
None of above
20.
In B4H10 number of B – B bonds presents…
0
1
2
4
21.
The bridged Hydrogen atoms present in B4H10 are…
5
10
4
2
22.
The number of terminal hydrogen present in B4H10 are…
6
8
4
0
23.
Which one of the following called as corundum alumina?
α – Al2O3
β
- Al2O3
δ
- Al2O3
None
of above
24.
Among the following which is used in column chromatography?
α
- Al2O3
β
- Al2O3
γ - Al2O3
δ
- Al2O3
25.
Lithium shows similar properties with…
Mg
Al
Si
Na
26.
Boron shows similar properties with…
Na
Mg
Al
Si
27. The reducing character increases from B to Tl
because…
Ionization
Potential increases
Ionization Potential decreases
Ionization
Potential remains constant
None
of above
28.
Among the following which is correct statement related to Fazan’s rule?
Smaller the size of the cation, the
greater is the tendency for covalent bonding.
Greater the size of the cation, the greater is the
tendency for covalent bonding.
Smaller the size of the cation, the smaller is the
tendency for covalent bonding.
Greater the size of the cation, the smaller is the
tendency for covalent bonding.
29.
Among the following which one forms Covalent Compound?
Aluminium
Boron
Silicon
Germanium
30.
The chemical formula for diborane is…
B3H5
B2H5
B3H6
B2H6
31.
In group 14 the atomic radius from top to bottom…
Decreases
Increases
Remains
same
None
of above
32.
Among the C, Si, Ge, Sn, Pb which one has highest Ionization Potential?
Ge
Pb
Si
C
33.
In group 14 elements which element have highest Melting & Boiling Point?
Carbon
Silicon
Tin
Lead
34.
Among the following which element has lowest Melting Point?
Carbon
Silicon
Germanium
Tin
35.
The oxidation state of the Carbon atom is…
-2
+2
+4
-4
36.
Among the following which element is known to be distinctly Metal?
Carbon
Silicon
Germanium
Lead
37.
From Carbon to Lead electronegativity get…
Decreases
Increases
Remains
constant
Remains
unchanged
38.
From Carbon to Lead stability of Hdrides…
Increases
Decreases
Remains
unchanged
Constant
39.
Elements of group 14 forms
Ionic
Hydrides
Radical
Hydrides
Covalent Hydrides
None
of above
40.
Covalent character from Carbon to Lead…
Increases
Decreases
Remains
same
None
of above
41.
Among the following the incorrect sentence related to CO is…
CO
is Odorless
CO
is Colorless
CO
is Toxic
CO is Colorful
42.
Among the following which dioxide is strongly acidic in nature?
GeO2
SnO2
CO2
PbO2
43.
The structure of CO2 is…
Bent
Linear
Pyrmidal
None
of above
44.
Among the following which one have highest Melting Point?
CO2
SiO2
PbO2
SnO2
45.
Why ionization potential increases from Sn to Pb?
Presence
of S electron
Presence
of D electron
Presence of F electron
None
of above
46.
Diamond and Graphite are the forms of…
Carbon
Silicon
Tin
Lead
47.
Among the following which has highest tendency to form chains(Catenation)?
Carbon
Silicon
Tin
Lead
48.
The number of Si – Si bonds present in SiO2 are…
0
1
2
3
49.
The incorrect statement about CO2 is…
It
is colorless
It is odorless
It
is slightly acidic
None
of above
50.
As atomic number increases, the character of group 14 elements from non
metallic to metallic…
Increases
Decreases
Remains
unchanged
None
of above
51.
In group 15 as we move from N to Bi atomic radius…
Decreases
Increases
Remains
same
None
of above
52.
Among the following which element is present in the gaseous form?
Nitrogen
Phosphorus
Arsenic
Bismuth
53.
Among the following which element has highest Ionization energy?
Nitrogen
Phosphorus
Arsenic
Antimony
54.
Among the following which one has lowest electronegativity?
Nitrogen
Phosphorus
Arsenic
Bismuth
55.
Why Nitrogen does not form compounds in +5 oxidation state?
Because
it has no S orbital in outer shell
It
does not have D orbital in outer shell
Both
of above
None
of above
56.
Among the following which has ability to form dative bond with Lewis Acid?
Phosphorus
Arsenic
Antimony
Bismuth
57.
The common negative Oxidation state of group 15 elements is…
-1
-2
-3
-4
58.
In which Oxidation state all elements have tendency to act as electron pair
donor?
+2
+3
-3
+5
59.
Among the following which one does not act as electron acceptor?
Nitrogen
Arsenic
Antimony
Bismuth
60.
Among the following which has cubic crystalline structure?
α – Nitrogen
β
– Nitrogen
γ
– Nitrogen
δ
– Nitrogen
61.
Among the following which one element does not show allotropy?
Phosphorus
Arsenic
Antimony
Bismuth
62.
The trihydrides of group 15 elements are prepared from…
Primary
Metals
Binary Metals
Tertiary
Metals
None
of above
63.
The Haber Process is used to prepare…
PH3
AsH3
NH3
BiH3
64.
The structures of trihydrides of group 15 are…
Linear
Bent
Pyramidal
Hexagonal
65.
All trihydrides also known as…
Lewis
Acid
Lewis Base
Bronsted
Base
None
of above
66.
Among the trihydrides of group 15 which is most basic?
NH3
ArH3
SbH3
BiH3
67.
Among the following which one is most unstable?
NH3
PH3
ArH3
BiH3
68.
Among the following which one has less reducing character?
NH3
ArH3
SbH3
BiH3
69.
How many bridged O atoms in the P4O6 structure?
0
2
4
6
70.
P4O6 structure is…
Pyramidal
Tetrahedral
Hexagonal
Other
than above
71.
The number of Ï€ bonds present in the P4O6 structure are…
0
2
4
6
72.
The trioxides of Bismuth are…
Acidic
in nature
Basic in nature
Amphoteric
in nature
None
of above
73.
How many bridged O atoms in the P4O10 structure?
0
2
6
8
74.
Structure of P4O10 is…
Tetrahedral
Pentagonal
Hexagonal
Pyramidal
75.
In which state N2O3 exists in pure form?
Liquid
state
Solid state
Powder
form
None
of above
76.
The most abundant element in group 16 is…
Oxygen
Tellurium
Selenium
Polonium
77.
In group 16 as atomic number increases the atomic radius…
Increases
Decreases
Remains
constant
None
of above
78.
Among the following which has highest melting/boiling point?
Oxygen
Sulphar
Selenium
Polonium
79.
Among the following which one has highest Ionization Potential?
Oxygen
Sulphar
Selenium
Tellurium
80.
Why Oxygen does not obey the +4 Oxidation State?
It
has empty P orbital
It does not have D orbital
It
is fulfilled with electrons
None
of above
81.
Excepting Oxygen why other elements shows +4 & +6 oxidation state?
All
have f orbital
All
have free electrons
All have vacant D orbital
None
of above
82.
Among the following which one has highest boiling point?
H2O
H2S
H2Se
H2Te
83.
High boiling point of water is due to…
Dissociation
of molecules through hydrogen bonding
Association of molecules through hydrogen bonding
Dissociation
of molecules through other bonding
None
of above
84.
Among the following which one is most acidic?
H2Po
H2Se
H2S
H2O
85.
Among the following which one is thermally most stable?
H2O
H2S
H2Se
H2Te
86.
Among the following which does not act as reducing agent?
H2O
H2S
H2Se
H2Te
87.
Among the following which one act as most reducing agent?
H2S
H2Se
H2Te
None
of above
88.
Among the following which one has lowest bond angle?
H2O
H2S
H2Se
H2Te
89.
Find out the correct statement related to 1. H2O2 & 2. H2S2.
Both
1 & 2 are stable
1 is stable and 2 is unstable
Both
1 & 2 unstable
Unable
to predict.
90.
Pick up the correct statement related to 1. H2O2 & 2. H2S2.
Both
1 & 2 act as oxidizing agent
Both
1 & 2 act as reducing agent
Only 1 act as oxidizing agent and 2 not.
Can
not be predicted.
91.
Among the following which oxides are most stable?
Oxides of Sulphar
Oxides
of Selenium
Oxides
of Polonium
Oxides
of Tellurium
92.
Among the following which can form Heptoxide?
Oxygen
Sulphar
Selenium
Polonium
93.
Among the following which cannot form Monoxide?
Selenium
Tellurium
Polonium
None
of above
94.
SO2 is in the form of
Gas
Liquid
Powder
All
of above
95.
In the gaseous state SeO2 exists as…
Monomeric form
Dimeric
form
Both
of above
None
of above
96.
In solid state SeO2 has…
Monomeric
structure
Dimeric
structure
Polymeric structure
All
of above
97.
Among the following which oxides are soluble in water?
SeO2
TeO2
PoO2
All
of above
98.
Among the following which oxides are insoluble in water?
SO2
SeO2
PoO2
None
of above
99.
Among the following which is less acidic?
SO3
SeO3
TeO3
None
of above
100. Among the following which one is
amphoteric?
SO3
SeO3
TeO3
All
of above
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