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Which is the most abundant noble gas?

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Important Questions on The p-Block Elements

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Chemistry>Inorganic Chemistry>The p-Block Elements>Occurrence of p-Block Elements

Why are the elements of Group

18

known as noble gases?

MEDIUM

Chemistry>Inorganic Chemistry>The p-Block Elements>Occurrence of p-Block Elements

Give a reason for the following:

Inert gases do not form ions.

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Occurrence of p-Block Elements

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

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Chemistry>Inorganic Chemistry>The p-Block Elements>Occurrence of p-Block Elements

Which element among the following does NOT form diatomic molecules?

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Chemistry>Inorganic Chemistry>The p-Block Elements>Occurrence of p-Block Elements

Chalcogen group elements are :

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Chemistry>Inorganic Chemistry>The p-Block Elements>Occurrence of p-Block Elements

Match the compounds given in column I with the hybridization and shape given in column II and mark the correct option.

	Column I		Column II
(a)	$X e F_{6}$	(i)	Distorted octahedral
(b)	$X e O_{3}$	(ii)	Square planar
(c)	$X e O F_{4}$	(iii)	Pyramidal
(d)	$X e F_{4}$	(iv)	Square pyramidal

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Chemistry>Inorganic Chemistry>The p-Block Elements>Occurrence of p-Block Elements

How is fluorine isolate from fluorides using Dennis method.

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Chemistry>Inorganic Chemistry>The p-Block Elements>Occurrence of p-Block Elements

Among the following molecules,

(i) ${XeO}_{3}$

(ii) ${XeOF}_{4}$

(iii) ${XeF}_{6}$

those having same number of lone pairs on $Xe$ are:

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Occurrence of p-Block Elements

Which of the following noble gases is abundant in air?

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Chemistry>Inorganic Chemistry>The p-Block Elements>Occurrence of p-Block Elements

The indicator used during the estimation of

COD

of a water sample is

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Chemistry>Inorganic Chemistry>The p-Block Elements>Occurrence of p-Block Elements

{XeF}_{6}

on partial hydrolysis with water, produces a compound

X .

The same compound

X

is formed when

{XeF}_{6}

reacts with silica. The compound

X

is:

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Occurrence of p-Block Elements

The bond length of

Br - Br

{Br}_{2}

molecule is equal to

HARD

Chemistry>Inorganic Chemistry>The p-Block Elements>Occurrence of p-Block Elements

Under ambient conditions, the total number of gases released as products in the final step of the reaction scheme shown below is

Question Image

EASY

Chemistry>Inorganic Chemistry>The p-Block Elements>Occurrence of p-Block Elements

Which of the following is not a mineral of fluorine?

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Chemistry>Inorganic Chemistry>The p-Block Elements>Occurrence of p-Block Elements

143 K,

the reaction of

X e F_{4}

with

O_{2} F_{2}

produces a xenon compound

Y .

The total number of lone pair(s) of electrons present on the whole molecule of

Y

is __________

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Chemistry>Inorganic Chemistry>The p-Block Elements>Occurrence of p-Block Elements

Mention the hybridisation in the following molecule or ion :

${XeF}_{2}$

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Chemistry>Inorganic Chemistry>The p-Block Elements>Occurrence of p-Block Elements

How are

{XeF}_{2}

and

{XeF}_{4}

prepared? Give their structures.

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Chemistry>Inorganic Chemistry>The p-Block Elements>Occurrence of p-Block 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.

Element	Atomic number
$P$	$13$
$Q$	$7$
$R$	$10$

Which element has an electron affinity zero?

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Chemistry>Inorganic Chemistry>The p-Block Elements>Occurrence of p-Block Elements

An element belonging to Chalcogen group is

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Chemistry>Inorganic Chemistry>The p-Block Elements>Occurrence of p-Block Elements

The noble gas that does not occur in the atmosphere is;

Which is the most abundant noble gas?

Important Questions on The p-Block Elements

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