EASY

Earn 100

Assertion: The majority of noble gas compounds are those of xenon $(Xe)$ .

Reason: Xenon has the lowest ionization enthalpy and can be easily oxidized by oxidizing agents like oxygen and fluorine

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Important Questions on p-Block Elements

MEDIUM

Chemistry>Inorganic Chemistry>p-Block Elements>Atomic and Physical Properties of Group 18 Elements

Why are the elements of Group

18

known as noble gases?

MEDIUM

Chemistry>Inorganic Chemistry>p-Block Elements>Atomic and Physical Properties of Group 18 Elements

Give a reason for the following:

Inert gases do not form ions.

EASY

Chemistry>Inorganic Chemistry>p-Block Elements>Atomic and Physical Properties of Group 18 Elements

Write true or false: Group 16 elements are called halogens.

MEDIUM

Chemistry>Inorganic Chemistry>p-Block Elements>Atomic and Physical Properties of Group 18 Elements

Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R.

Assertion A: Amongst $He, Ne, Ar$ and $Kr$ ; $1 g$ of activated charcoal adsorbs more of $Kr$ .

Reason R: The critical volume $V_{c} ({cm}^{3} {mol}^{- 1})$ and critical pressure $P_{c}$ (atm) is highest for Krypton but the compressibility factor at critical point $Z_{c}$ is lowest for Krypton.

In the light of the above statements, choose the correct answer from the options given below.

EASY

Chemistry>Inorganic Chemistry>p-Block Elements>Atomic and Physical Properties of Group 18 Elements

Chalcogen group elements are :

EASY

Chemistry>Inorganic Chemistry>p-Block Elements>Atomic and Physical Properties of Group 18 Elements

Inert gases have positive electron gain enthalpy. Its correct order is

HARD

Chemistry>Inorganic Chemistry>p-Block Elements>Atomic and Physical Properties of Group 18 Elements

How is fluorine isolate from fluorides using Dennis method.

EASY

Chemistry>Inorganic Chemistry>p-Block Elements>Atomic and Physical Properties of Group 18 Elements

Which one has the highest boiling point?

EASY

Chemistry>Inorganic Chemistry>p-Block Elements>Atomic and Physical Properties of Group 18 Elements

Which of the following noble gases is abundant in air?

MEDIUM

Chemistry>Inorganic Chemistry>p-Block Elements>Atomic and Physical Properties of Group 18 Elements

The indicator used during the estimation of

COD

of a water sample is

MEDIUM

Chemistry>Inorganic Chemistry>p-Block Elements>Atomic and Physical Properties of Group 18 Elements

Arrange the following gases in increasing order of van der Waals constant

' a'

(A)

Ar

(B)

{CH}_{4}

(C)

H_{2} O

(D)

C_{6} H_{6}

Choose the correct option from the following.

EASY

Chemistry>Inorganic Chemistry>p-Block Elements>Atomic and Physical Properties of Group 18 Elements

The bond length of

Br - Br

{Br}_{2}

molecule is equal to

EASY

Chemistry>Inorganic Chemistry>p-Block Elements>Atomic and Physical Properties of Group 18 Elements

The element that even can diffuse through silica glass is

EASY

Chemistry>Inorganic Chemistry>p-Block Elements>Atomic and Physical Properties of Group 18 Elements

Which of the following is not a mineral of fluorine?

HARD

Chemistry>Inorganic Chemistry>p-Block Elements>Atomic and Physical Properties of Group 18 Elements

The following table represents the elements and the atomic number. With reference to this, answer the following using only the alphabets given in the table.