Match the column I with column II and mark the appropriate choice. | | column I | | | column II | | --- | --- | --- | --- | --- | | A | NaH | | i | Interstitial hydride | | B | $CH _{4}$ | | ii | Molecular hydride | | C | $VH _{0.56}$ | | iii | Ionic hydride | | D | $B _{2}H _{6}$ | | iv | Electron-deficient hydride |

$(A)\rightarrow (iii), (B)\rightarrow (ii), (C)\rightarrow (i) (D)\rightarrow (iv)$

both electropositive as well as electronegative

Hydrides - class-XI - Aliensbrain

Question 1 Multiple Choice (Single Answer)

Which of the following represents saline Hydrydes?

$KH,\,Ca{H _2},\,Ba{H _2}$
$NaH,Si{H _4},KH$
$N{H _3},{B _2}{H _6}\,Al{H _3}$
$N{H _3},{H _2}O,HF$

Question 2 Multiple Choice (Single Answer)

$Ca{H _2}$ is an example of :

Ionic hydride
Covelent hydride
Metallic hydride
Polymeric hydride

Question 3 Multiple Choice (Single Answer)

Which of the following pair behaves strong and weak base hydride :

$NH _3, PH _3, AsH _3, SbH _3, BiH _3$

$NH _3, PH _3$
$NH _3, BiH _3$
$PH _3, BiH _3$
$BiH _3, AsH _3$

Question 4 Multiple Choice (Single Answer)

Ionic hydrides are usually:

good electrical conductors when solid
easily reduced
good reducing agents
liquid at room temperature

Question 5 Multiple Choice (Single Answer)

The stability of hydrogen halides is in the order of:

$HF>HI>HBr>HCl$
$HI>HBr>HCl>HF$
$HF>HCl>HBr>HI$
$HCl>HBr>HI>HF$

Question 6 Multiple Choice (Single Answer)

Which of the following hydride is 'electron-precise' type?

$HF$
$H _2O$
$SiH _4$
$PH _3$

Question 7 Multiple Choice (Single Answer)

Hydorgen forms binary compounds called hybrides with several elements in the periodic table.Regarding these hydrides the wrong statement

Among lanthanoids europioum and ytterbium form ionic hydrides
Density of ionic hydrides is less while the density of interstitial hydrides is more than the metals from which they are formed
The rate of reaction of alkali metals towards hydrogen decreases from lithium to ceasium
Hydrogen gas can be purified by the phenomenon of Occlusion of hydrogen by palladium

Question 8 Multiple Choice (Single Answer)

The hydride ion, $H^{-}$ is a stronger base than its hydroxide ion $OH^{-}$. Which of the following reactions will occur, if sodium hydride $(NaH)$ is dissolved in water?

$H^{-} _{\left ( aq \right )}+H _{2}O\rightarrow H _{3}O^{-}$
$H^{-} _{\left ( aq \right )}+H _{2}O _{\left ( l \right )}\rightarrow OH^{-}+H _{2}$
$H^{-}+H _{2}O _{(l)}\rightarrow\ no\ reaction$
$None\ of\ the\ above$

Question 9 Multiple Choice (Single Answer)

Which of the following metals directly combine with hydrogen gas to give a hydride?

Au
Ni
Ca
Cu

Question 10 Multiple Choice (Single Answer)

What is the trend of boiling points of hydrides of N, O, and F?

Due to lower molecular masses $NH _{3}, H _{2}O$ and HF have lower boiling points than those of the subsequent group member hydrides
Due to higher electronegativity of N, O and F; $NH _{3}, H _{2}O$ and HF show hydrogen bonding and hence higher boiling points than the hydrides of their subsequent group members.
There is no regular trend in the boiling points of hydrides
Due to higher oxidation states of N, O and F, the boiling points of $NH _{3}, H _{2}O$ and HF are higher than the hydrides of their subsequent group members.

Question 11 Multiple Choice (Single Answer)

Which of the following hydrides is electron-precise hydride?

$B _2H _6$
$NH _3$
$H _2O$
$CH _4$

Question 12 Multiple Choice (Single Answer)

Non-stoichiometric hydrides are produced by:

palladium, vanadium
manganese, lithium
nitrogen, filorine
carbon, nockel

Question 13 Multiple Choice (Single Answer)

From group 6 only one metal forms hydride. This metal is:

Mo
W
Cr
Co

Question 14 Multiple Choice (Single Answer)

Only one element of ________ forms hydride.

group 6
group 7
group 8
group 9

Question 15 Multiple Choice (Single Answer)

Elements of which of the following group (s) of periodic table do not form hydrides?

Groups 7, 8, 9
Group 13
Groups 15, 16, 17
Group 14

Question 16 Multiple Choice (Multiple Answers)

Which of the following exists as associated molecules due to hydrogen bonding?

$NH _{3}$
$H _{2}O$
$HF$
$HCl$

Question 17 Multiple Choice (Single Answer)

Match list I with list II. Choose the correct matching codes from the choices given.
List I List II
(Hydride) (Type of hydride)
A. $BeH _{2}$ 1. Complex
B.. $AsH _{3}$ 2. Lewis acid
C. $B _{2}H _{6}$ 3. Interstitial
D. $LaH _{3}$ 4. Covalent
E. $LiAlH _{4}$ 5. Intermediate

A-6, B-2, C-4, D-5, E-1
A-6, B-2, C-4, D-3, E-1
A-6, B-4, C-2, D-3, E-15
A-5, B-4, C-2, D-3, E-1

Question 18 Multiple Choice (Single Answer)

Match the column I with column II and mark the appropriate choice.

	column I		column II
A	NaH	i	Interstitial hydride
B	$CH _{4}$	ii	Molecular hydride
C	$VH _{0.56}$	iii	Ionic hydride
D	$B _{2}H _{6}$	iv	Electron-deficient hydride

$(A)\rightarrow (iii), (B)\rightarrow (iv), (C)\rightarrow (ii) (D)\rightarrow (i)$
$(A)\rightarrow (ii), (B)\rightarrow (iv), (C)\rightarrow (iii) (D)\rightarrow (i)$
$(A)\rightarrow (i), (B)\rightarrow (ii), (C)\rightarrow (iv) (D)\rightarrow (iii)$
$(A)\rightarrow (iii), (B)\rightarrow (ii), (C)\rightarrow (i) (D)\rightarrow (iv)$

Question 19 Multiple Choice (Single Answer)

Correct order of ionic character is:

$CaH _2 < BaH _2 < CH _4$
$CH _4 < CaH _2 < BaH _2$
$CH _4 < BaH _2 < CaH _2$
$BaH _2< CaH _2 < CH _4$

Question 20 Multiple Choice (Single Answer)

Ionic hydride among following is

$BeH _2$
$NH _2$
$CaH _2$
$CuH _2$

Question 21 Multiple Choice (Single Answer)

Hydrogen differ with alkali metals in the following aspect ?

Formation of halides
Formation of oxides
Electronic configuration
Atomicity

Question 22 Multiple Choice (Single Answer)

Among $CaH _2, NH _3, NaH$ and $B _2H _6$, which are covalent hydrides?

$NH _3$ and $B _2H _6$
$NaH$ and $CaH _2$
$NaH$ and $ NH _3$
$CaH _2$ and $B _2H _6$

Question 23 Multiple Choice (Single Answer)

Hydrogen is:

electropositive
electronegative
both electropositive as well as electronegative
neither electropositive nor electronegative

Question 24 Multiple Choice (Multiple Answers)

Hydrogen readily combines with these elements?

Na
K
Ca
Zn

Hydrides - class-XI

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