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Test: Types of Bond & Fajan Rule (May 22) - JEE MCQ


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10 Questions MCQ Test - Test: Types of Bond & Fajan Rule (May 22)

Test: Types of Bond & Fajan Rule (May 22) for JEE 2024 is part of JEE preparation. The Test: Types of Bond & Fajan Rule (May 22) questions and answers have been prepared according to the JEE exam syllabus.The Test: Types of Bond & Fajan Rule (May 22) MCQs are made for JEE 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Types of Bond & Fajan Rule (May 22) below.
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Test: Types of Bond & Fajan Rule (May 22) - Question 1
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The electronic configuration of four atoms are given in brackets:

L(1s22s22p1); 
M(1s22s22p5);
Q(1s22s22p63s1);
R(1s22s22p2);

The element that would most readily form a diatomic molecule is

Detailed Solution for Test: Types of Bond & Fajan Rule (May 22) - Question 1

By sharing of 1electron each, both the atoms of M will get a completed octet.

Test: Types of Bond & Fajan Rule (May 22) - Question 2
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How many number of electrons are involved in the formation of a nitrogen molecule?

Detailed Solution for Test: Types of Bond & Fajan Rule (May 22) - Question 2

Number of electrons involved in bonding is 6.

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Test: Types of Bond & Fajan Rule (May 22) - Question 3
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Lewis structure of HCI, H2O and NH3 are

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Test: Types of Bond & Fajan Rule (May 22) - Question 4
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Which of the following is electron deficient?
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Test: Types of Bond & Fajan Rule (May 22) - Question 5
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Considering x-axis as the internuclear axis, which out of the following will not form sigma bond.
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Test: Types of Bond & Fajan Rule (May 22) - Question 6
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Which of these molecules have non-bonding electron pairs on the central atom?

I. SF4
II. ICI3
III. SO2
IV. NH3
V. SiF4
Detailed Solution for Test: Types of Bond & Fajan Rule (May 22) - Question 6

Nonbonding electron pairs means lonepair of electrons.​

  • SF4​ molecule has one non-bonding electron pair on the central atom Sulfur.
  • ICl3​ molecule has two non-bonding electron pairs on the central atom Iodine. 
  • SO2​ molecule has one non-bonding electron pair on the central atom Sulfur.

So the answer is D.

Test: Types of Bond & Fajan Rule (May 22) - Question 7
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Different kinds of bonds and interaction present within CuSO4 • 5H2O. They can be

I. σ-bond
II. π-bond
III. coordinate bond
IV. electrostatic force of attraction
V. H-bond due to dipole-dipole interaction
VI. H-bond due to ion-dipole interaction 

Select the correct types of bonds/interactions.
Detailed Solution for Test: Types of Bond & Fajan Rule (May 22) - Question 7





IV. Electrostatic force of attraction between  and
V. H2O molecules joined together by dipole-dipole interaction.
VI. Outer H2O molecule joined to by ion-dipole interaction.

Test: Types of Bond & Fajan Rule (May 22) - Question 8
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Arrange NaCI, MgCI2, AICI3, SiCI4 in increasing solubility in ether (non-polar solvent).
Detailed Solution for Test: Types of Bond & Fajan Rule (May 22) - Question 8

Like dissolves like. Polar solvents (as H2O) dissolve polar compounds (ionic compounds) and non-polar solvents (as ether) dissolve non-polar compounds (covalent compounds).
By Fajans’ rule smaller the size of cation, larger the size of anion. Larger the charge on cation or anion then larger the polarising power and thus, larger the covalent nature and thus, solubility in non-polar solvents.


Test: Types of Bond & Fajan Rule (May 22) - Question 9
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Most stable compound is
Detailed Solution for Test: Types of Bond & Fajan Rule (May 22) - Question 9

By Fajans’ rule,
Smaller the size of cation, larger the size of anion, larger the charge, then larger the polarising power, larger the covalent nature, means low melting point.
Smaller the ionic nature, means low melting point 


Hence, most stable is LiF.

Test: Types of Bond & Fajan Rule (May 22) - Question 10
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Aqueous solution of a mixture contains LiCI, CuCI, NaCI and AICI3. This is shaken with ether. What is/are left in water?
Detailed Solution for Test: Types of Bond & Fajan Rule (May 22) - Question 10

Polarising power of Li+ > Na+ and AI3+ > Na+
Thus, LiCI and AICI3 have covalent nature and extracted into ether.
CuCI due to d-electrons has covalent nature. (Polarising power of Cu+ > Na+).
Thus, only NaCI (ionic) remains in water.

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