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Year: 2021
Topic: The p-Block Elements
1.
Noble gases are named because of their inertness towards reactivity. Identify an incorrect statement about them.
(1).
Noble gases are sparingly soluble in water
(2).
Noble gases have very high melting and boiling points.
(3).
Noble gases have weak dispersion forces.
(4).
Noble gases have large positive values of electron gain enthalpy.

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Year: 2021
Topic: The p-Block Elements
2.
Statement I : Acid strength increases in the order given as
HF << HCI << HBr << HI.
Statement II : As the size of the elements F, Cl, Br, I increases down the group, the bond strength of HF, HCl, HBr and HI decreases and so the acid strength increases.
In the light of the above statements, choose thecorrect answer from the options given below.
(1).
Both Statement I and Statement II are true.
(2).
Both Statement I and Statement II are false.
(3).
Statement I is correct but Statement Il isfalse.
(4).
Statement I is incorrect but Statement II istrue.

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Year: 2019
Topic: The p-Block Elements
3.
Match the Xenon compounds in Column-I with its structure in Column-II and assign the correct code
(1).
(a) - (ii), (b) -(iii), (c) - (iv), (d) - (i)
(2).
(a) - (ii), (b) - (iii), (c) - (i), (d) - (iv)
(3).
(a) - (iii), (b) - (iv), (c) - (i), (d) - (ii)
(4).
(a) - (i), (b) - (ii), (c) - (iii), (d) - (iv)

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Year: 2018
Topic: The p-Block Elements
4.
The correct order of atomic radii in group 13 elements is
(1).
B < Ga < Al < In < Tl
(2).
B < Ga < Al < Tl < In
(3).
B < Al < Ga < In < Tl
(4).
B < Al < In < Ga < Tl

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Year: 2016
Topic: The p-Block Elements
5.
Which is the correct statement for the given acids ?
(1).
Phosphinic acid is a monoprotic acid while phosphonic acid is a diprotic acid
(2).
Phosphinic acid is a diprotic acid while phosphonic acid is a monoprotic acid
(3).
Both are triprotic acids
(4).
Both are diprotic acids

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Year: 2016
Topic: The p-Block Elements
6.
Which one of the following orders is correct for the bond dissociation enthalpy of halogen molecules ?
(1).
Cl2 > Br2 > F2 > I2
(2).
Br2 > I2 > F2 > Cl2
(3).
F2 > Cl2 Br2 > I2
(4).
I2 > Br2 > Cl2 > F2

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Year: 2020
Topic: The p-Block Elements
7.
The following metal ion activates many enzymes, participates in the oxidation of glucose to produce ATP and with Na, is responsible for the transmission of nerve signals.
(1).
Copper
(2).
Calcium
(3).
Potassium
(4).
Iron

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Year: 2020
Topic: The p-Block Elements
8.
Which of the following oxoacid of sulphur has -O-O-linkage?
(1).
H2SO4, sulphuric acid
(2).
H2S2O8, peroxodisulphuric acid
(3).
H2s2O7. pyrosulphuric acid
(4).
H2SO3, sulphurous acid

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Year: 2020
Topic: The p-Block Elements
9.
ldentify the correct statements from the following:
(a) CO2(g) is used as refrigerant for ice-cream and frozen food.
(b) The structure of C60 contains twelve six carbon rings and twenty five carbon rings.
(c) ZSM-5, a type of zeolite, is used to convert alcohols into gasoline.
(d) CO is colorless and odourless gas.
(1).
(a) and (c) only
(2).
(b) and (c) only
(3).
(c) and (d) only
(4).
(a), (b) and (c) only

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Year: 2020
Topic: The p-Block Elements
10.
Match the following :
(1).
(a)-(ii), (b)-(i), (c)-(iv), (d)-(iii)
(2).
(a)-(iii), (b)-(iv), (c)-(i), (d)-(ii)
(3).
(a)-(iv), (b)-(iii), (c)-(ii), (d)-(i)
(4).
(a)-(i), (b)-(ii), (c)-(iii), (d)-(iv)

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Year: 2019
Topic: The p-Block Elements
11.
The correct structure or tribromo octaoxide is
(1).
(2).
(3).
(4).

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Year: 2019
Topic: The p-Block Elements
12.
Which is the correct thermal stability order for H2E
(E = O, S, Se, Te and Po)?
(1).
H2O < H2S < H2Se < H2Te < H2Po
(2).
H2Po < H2Te < H2Se < H2S < H2O
(3).
H2Se < H2Te < H2Po < H2O < H2S
(4).
H2S < H2O < H2Se < H2Te < H2Po

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Year: 2019
Topic: The p-Block Elements
13.
Which of the following is incorrect statement ?
(1).
SiCl4 is easily hydrolysed.
(2).
GeX4 (X = F, Cl, Br, I) is more stable than GeX2.
(3).
SnF4 is ionic in nature.
(4).
PbF4 is covalent in nature.

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Year: 2019
Topic: The p-Block Elements
14.
Which of the following species is not stable?
(1).
[GeCl6]2–
(2).
[Sn(OH)6]2–
(3).
[SiCl6]2–
(4).
[SiF6]2–

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Year: 2018
Topic: The p-Block Elements
15.
Which of the following oxides is most acidic in nature ?
(1).
CaO
(2).
BaO
(3).
BeO
(4).
MgO

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Year: 2018
Topic: The p-Block Elements
16.
Which of the following statements is not true for halogens ?
(1).
Chlorine has the highest electron-gain enthalpy.
(2).
All halogens except fluorine show positive oxidation states. .
(3).
All are oxidizing agents.
(4).
All form monobasic oxyacids

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Year: 2018
Topic: The p-Block Elements
17.
Which one of the following elements is unable to form \(\text{MF}_^{3-} ion ?
(1).
In
(2).
B
(3).
Al
(4).
Ga

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Year: 2016
Topic: The p-Block Elements
18.
When copper is heated with conc. HNO3 it produces
(1).
Cu(NO3)2 and NO
(2).
Cu(NO3)2, NO and NO2
(3).
Cu(NO3)2 and N2O
(4).
Cu(NO3)2 and NO2

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Year: 2016
Topic: The p-Block Elements
19.
Match the compounds given in column I with the hybridisation and shape given in column II and mark the correct option.
(1).
A - 1, B - 2, C - 4, D - 3
(2).
A - 4, B - 3, C - 1, D - 2
(3).
A - 4, B - 1, C - 2, D - 3
(4).
A - 1, B - 3, C - 4, D - 2

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Year: 2016
Topic: The p-Block Elements
20.
Which one of the following statements is correct when SO2 is passed through acidified K2Cr2O7 solution ?
(1).
The solution is decolourized
(2).
SO2 is reduced
(3).
Green Cr2(SO4)3 is formed
(4).
The solution turns blue

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