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Test: Noble gases and its properties - JEE MCQ


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15 Questions MCQ Test - Test: Noble gases and its properties

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Test: Noble gases and its properties - Question 1

Compounds formed when the noble gases get entrapped in the cavities of crystal lattices of certain organic and inorganic compounds are known as

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Clathrates (also known as cage compounds) are compounds of noble gases in which they are trapped within cavities of crystal lattices of certain organic and inorganic substances.
Test: Noble gases and its properties - Question 2

Ionisation potential values of noble gases decrease down the group with increase in atomic size. Xenon forms binary fluorides by the direct reaction of elements. Identify the correct statement(s) from below.

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Ionisation potential values of noble gases decrease down the group with increase in atomic size. Xenon forms binary fluorides by the direct reaction of elements.
The reason is that only the heavier noble gases form such compounds. Octet of electrons provide the stable arrangements but this statement is not very much valid in cases of higher element which can be ionised easily due to large distance between nucleus and valence electrons.
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Test: Noble gases and its properties - Question 3

Which of the following cannot be formed?

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:
Bond Order
Not formed, does not exist
Test: Noble gases and its properties - Question 4
Incorrect statement regarding following reactions is:
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(1) Correct. It can go partial hydrolysis.
(2) Both are example of non-redox reaction
(3) . No, it is not an oxyacid of
(4) . Yes, it is explosive
Test: Noble gases and its properties - Question 5

MF + XeF4 ⟶ ′A′(M+ = Alkali metal cation)
The state of hybridisation of the central atomin 'A' and shape of the species are:

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, pentagonal planar

Test: Noble gases and its properties - Question 6
The lightest gas is
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The lightest gas is hydrogen . Tos atomic weight is . But among the mentioned gases
lightest one is helium (He). Its atomic weight is .
Test: Noble gases and its properties - Question 7

Which inert gas have highest boiling point

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point of Inert gases

Test: Noble gases and its properties - Question 8
When helium gas is allowed to expand into vaccum, heating effect is observed. The reason for this is (assume He as a non ideal gas)
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Hydrogen and helium exhibit heating effect during Joule Thomson expansion due to low inversion temperature.
Test: Noble gases and its properties - Question 9
Which of the following are formed by Xenon
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This compound is formed by xenon.
Xe compounds can contain only even no. of fluorine atoms.
Xe has a complete filled 5 p configuration. As a result when it undergoes bonding with an odd number ( 3 or 5 ) of F atoms it leaves behind one unpaired electron. This causes the molecule to become unstable.
Test: Noble gases and its properties - Question 10
The ionization energy of is very close to that of
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Test: Noble gases and its properties - Question 11
When a mixture of and in the ratio of is heated at in a sealed nickel vessel, the compound formed is
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Test: Noble gases and its properties - Question 12

The number of paired electrons around in is

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has

structure
No. of lone pairs
No. of bond pairs
total paired electrons

Test: Noble gases and its properties - Question 13
The structure of is
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Test: Noble gases and its properties - Question 14
Which of the following statements is incorrect?
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molecule has a trigonal bipyramidal structure.
Test: Noble gases and its properties - Question 15
The formula of freon is
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