Match the catalysts to the correct process. Catalyst Process A. T i C l 3 i. Wacker process B. P d C l 2 ii. Ziegler – Natta polymerisation C. C u C l 2 iii. Contact process` D. V 2 O 5 iv. Deacon’s process

A → i i , B → i , C → i v , D → i i i

A → i i i , B → i , C → i i , D → i v

A → i i i , B → i i , C → i v , D → i

A → i i , B → i i i , C → i v , D → i

Match the following: Column I Column II (a) Saline hydride (i) CrH (b) Electron-deficient hydride (ii) CH 4 (c) Electron-precise hydride (iii) BeH 2 (d) Electron-rich hydride (iv) B 2 H 6 (e) Metallic hydride (v) H 2 O

a ) - iii ; b ) - iv ; c ) - ii ; d ) - v ; e ) - i

a ) - iii ; b ) - ii ; c ) - iv ; d ) - v ; e ) - i

a ) - iii ; b ) - v ; c ) - iv ; d ) - ii ; e ) - i

a ) - iv ; b ) - ii ; c ) - iii ; d ) - v ; e ) - i

a ) - iii ; b ) - i ; c ) - ii ; d ) - iv ; e ) - v

Match List - I with List - II. List - I (Hydrides) List - II (Nature) (a) MgH 2 (i) Electron precise (b) GeH 4 (ii) Electron deficient (c) B 2 H 6 (iii) Electron rich (d) HF (iv) Ionic Choose the correct answer from the options given below:

(a)-(v), (b)-(i), (c)-(ii), (d)-(iii)

(a)-(iii),(b)-(i),(c)-(ii),(d)-(iv)

(a) - (i), (b) - (iii), (c) - (iv), (d) - (ii)

(a) - (ii), (b) - (iii), (c) - (iv), (d) - (i)

EASY

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In respect of non-stoichiometric hydrides, select the wrong statement

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Important Questions on Hydrogen

EASY

Chemistry>Inorganic Chemistry>Hydrogen>Hydrides

Which of the following hydrides is electron deficient?

MEDIUM

Chemistry>Inorganic Chemistry>Hydrogen>Hydrides

Given below are two statements.

Statement I : Stannane is an example of a molecular hydride.

Statement II : Stannane is a planar molecule. In the light of the above statement, choose the most appropriate answer from the options given below

EASY

Chemistry>Inorganic Chemistry>Hydrogen>Hydrides

On passing electric current over molten ionic hydrides of

s

-block elements,

EASY

Chemistry>Inorganic Chemistry>Hydrogen>Hydrides

The transition elements that has the lowest enthalpy of atomisation is:

HARD

Chemistry>Inorganic Chemistry>Hydrogen>Hydrides

Statement I : Sodium hydride can be used as an oxidising agent.

Statement II : The lone pair of electrons on nitrogen in pyridine makes it basic.

Choose the CORRECT answer from the options given below :

EASY

Chemistry>Inorganic Chemistry>Hydrogen>Hydrides

Match the catalysts to the correct process.

	Catalyst		Process
A.	$T i C l_{3}$	i.	Wacker process
B.	$P d C l_{2}$	ii.	Ziegler – Natta polymerisation
C.	$C u C l_{2}$	iii.	Contact process`
D.	$V_{2} O_{5}$	iv.	Deacon’s process

MEDIUM

Chemistry>Inorganic Chemistry>Hydrogen>Hydrides

Match the following:

	Column I		Column II
(a)	Saline hydride	(i)	$CrH$
(b)	Electron-deficient hydride	(ii)	${CH}_{4}$
(c)	Electron-precise hydride	(iii)	${BeH}_{2}$
(d)	Electron-rich hydride	(iv)	$B_{2} H_{6}$
(e)	Metallic hydride	(v)	$H_{2} O$

EASY

Chemistry>Inorganic Chemistry>Hydrogen>Hydrides

The correct order of the first ionization enthalpies is:

EASY

Chemistry>Inorganic Chemistry>Hydrogen>Hydrides

Alkali metal hydrides follow the thermal stability order

MEDIUM

Chemistry>Inorganic Chemistry>Hydrogen>Hydrides

Which of the following combination of elements forms interstitial hydrides?

EASY

Chemistry>Inorganic Chemistry>Hydrogen>Hydrides

Find the metallic and ferromagnetic substance.

MEDIUM

Chemistry>Inorganic Chemistry>Hydrogen>Hydrides

Match the following.

	$List- I$		$List- II$
$(A)$	Electron-deficient hydride	$(I)$	${CH}_{4}$
$(B)$	Electron-precise hydride	$(II)$	$B_{2} H_{6}$
$(C)$	Electron-rich hydride	$(III)$	${CaH}_{2}$
$(D)$	Saline hydride	$(IV)$	${NiH}_{0.6}$
		$(V)$	${PH}_{3}$

EASY

Chemistry>Inorganic Chemistry>Hydrogen>Hydrides

Which of the following are the transition metal ions responsible for colour in ruby and emerald respectively?

EASY

Chemistry>Inorganic Chemistry>Hydrogen>Hydrides

Lithium aluminium hydride can be prepared from the reaction of

EASY

Chemistry>Inorganic Chemistry>Hydrogen>Hydrides

Consider the hydrated ions of

T i^{2 +}, V^{2 +}, T i^{3 +}

and

S c^{3 +}

. The correct order of their spin-only magnetic moments is:

MEDIUM

Chemistry>Inorganic Chemistry>Hydrogen>Hydrides

Although Zirconium belongs to

4 d

transition series and Hafnium to

5 d

transition series even then they show similar physical and chemical properties because _____.

EASY

Chemistry>Inorganic Chemistry>Hydrogen>Hydrides

Reason of lanthanoid contraction is:

EASY

Chemistry>Inorganic Chemistry>Hydrogen>Hydrides

Match List - I with List - II.

List - I (Hydrides)		List - II (Nature)
(a)	${MgH}_{2}$	(i)	Electron precise
(b)	${GeH}_{4}$	(ii)	Electron deficient
(c)	$B_{2} H_{6}$	(iii)	Electron rich
(d)	$HF$	(iv)	Ionic

Choose the correct answer from the options given below:

EASY

Chemistry>Inorganic Chemistry>Hydrogen>Hydrides

An example of non-stoichiometric hydride is

MEDIUM

Chemistry>Inorganic Chemistry>Hydrogen>Hydrides

The correct statements among

(a)

(d)

are:

(a)

Saline hydrides produce

H_{2}

gas when reacted with

H_{2} O .

(b)

Reaction of

L i A l H_{4}

with

B F_{3}

leads to

B_{2} H_{6}

(c)

P H_{3}

and

C H_{4}

are electron - rich and electron - precise hydrides, respectively.

(d)

H F

and

C H_{4}

are called as molecular hydrides.

In respect of non-stoichiometric hydrides, select the wrong statement

Important Questions on Hydrogen

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