Match List-I with Match List-II List-I (Metal) List-II (Application) (A) Cs (I) High temperature thermometer (B) Ga (II) Water repellent sprays (C) B (III) Photoelectric cells (D) Si (V) Bullet proof vest Choose the most appropriate answer from the options given below

A - III , B - I , C - IV , D - II

A - II , B - III , C - IV , D - I

A - IV , B - III , C - II , D - I

A - I , B - IV , C - II , D - II

MEDIUM

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Flerovium and Livermorium elements belongs to which group or family in periodic table.

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Important Questions on p- Block Elements

HARD

Chemistry>Inorganic Chemistry>p- Block Elements>General introduction of Group 13 Element

The number of non-ionisable protons present in the product $B$ obtained from the following reaction is___ $C_{2} H_{5} OH + {PCl}_{3} \to C_{2} H_{5} Cl + A$

$A + {PCl}_{3} \to B$

MEDIUM

Chemistry>Inorganic Chemistry>p- Block Elements>General introduction of Group 13 Element

Match List-I with Match List-II

	List-I (Metal)		List-II (Application)
(A)	$Cs$	(I)	High temperature thermometer
(B)	$Ga$	(II)	Water repellent sprays
(C)	$B$	(III)	Photoelectric cells
(D)	$Si$	(V)	Bullet proof vest

Choose the most appropriate answer from the options given below

MEDIUM

Chemistry>Inorganic Chemistry>p- Block Elements>General introduction of Group 13 Element

What is inert pair effect?

EASY

Chemistry>Inorganic Chemistry>p- Block Elements>General introduction of Group 13 Element

It is because of the inability of

{ns}^{2}

electrons of the valence shell to participate in bonding that

EASY

Chemistry>Inorganic Chemistry>p- Block Elements>General introduction of Group 13 Element

How many five-membered and six-membered rings are present in a buckmisterfullerene

(C_{60}) ?

EASY

Chemistry>Inorganic Chemistry>p- Block Elements>General introduction of Group 13 Element

Match List I with List II.

List I		List II
A.	Reverberatory furnace	I.	Pig iron
B.	Electrolytic cell	II.	Aluminium
C.	Blast furnace	III.	Silicon
D.	Zone refining furnace	IV.	Copper

EASY

Chemistry>Inorganic Chemistry>p- Block Elements>General introduction of Group 13 Element

Aluminium is usually found in

+ 3

oxidation state. In contrast, thallium exists in

+ 1

and

+ 3

oxidation states. This is due to:

MEDIUM

Chemistry>Inorganic Chemistry>p- Block Elements>General introduction of Group 13 Element

Match List I with List II

	List I		List II
A	Nitrogen oxides in air	I	Eutrophication
B	Methane in air	II	$pH$ of rain water becomes $5.6$
C	Carbon dioxide	III	Global warming
D	Phosphate fertilisers in water	IV	Acid rain

Choose the correct answer from the options given below :

EASY

Chemistry>Inorganic Chemistry>p- Block Elements>General introduction of Group 13 Element

Ammonia is not produced in the reaction of:

MEDIUM

Chemistry>Inorganic Chemistry>p- Block Elements>General introduction of Group 13 Element

Which of the following statement is incorrect?

EASY

Chemistry>Inorganic Chemistry>p- Block Elements>General introduction of Group 13 Element

On heating,

{LiNO}_{3}

gives how many compounds among the following?

{Li}_{2} O, N_{2}, O_{2}, {LiNO}_{2}, {NO}_{2}

EASY

Chemistry>Inorganic Chemistry>p- Block Elements>General introduction of Group 13 Element

Inert pair effect is concerned with

EASY

Chemistry>Inorganic Chemistry>p- Block Elements>General introduction of Group 13 Element

The delicate balance of

{CO}_{2}

and

O_{2}

is NOT disturbed by

MEDIUM

Chemistry>Inorganic Chemistry>p- Block Elements>General introduction of Group 13 Element

Reaction of $BeO$ with ammonia and hydrogen fluoride gives $' A'$ which on thermal decomposition gives ${BeF}_{2}$ and ${NH}_{4} F$ . What is $' A'$ ?

MEDIUM

Chemistry>Inorganic Chemistry>p- Block Elements>General introduction of Group 13 Element

Which hydride among the following is less stable?

MEDIUM

Chemistry>Inorganic Chemistry>p- Block Elements>General introduction of Group 13 Element

Which statements about Boron and its compounds, among the following are true?
(i) Boron has high density and good electrical conductivity.
(ii)

{}^{10}B

isotope metal borides are useful as protective shields in nuclear industry.
(iii) Borax and boric acid are used in the manufacture of glasses.
(iv) Orthoboric acid is toxic and hence not useful in antiseptic solutions.

MEDIUM

Chemistry>Inorganic Chemistry>p- Block Elements>General introduction of Group 13 Element

Match List I with List II

	List I Type of Hydride		List II Example
A	Electron deficient hydride	I	${MgH}_{2}$
B	Electron rich hydride	II	$HF$
C	Electron precise hydride	III	$B_{2} H_{6}$
D	Saline hydride	IV	${CH}_{4}$

Choose the correct answer from the options given below :

MEDIUM

Chemistry>Inorganic Chemistry>p- Block Elements>General introduction of Group 13 Element

The incorrect statement among the following is /are

EASY

Chemistry>Inorganic Chemistry>p- Block Elements>General introduction of Group 13 Element

Which of the following is not a d-block element?

MEDIUM

Chemistry>Inorganic Chemistry>p- Block Elements>General introduction of Group 13 Element

The oxide, which is neither acidic nor basic is

Flerovium and Livermorium elements belongs to which group or family in periodic table.

Important Questions on p- Block Elements

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