MCQ Questions for Class 11 Medical Chemistry Hydrogen Quiz 12

Ionic hydride among following is

0%
$BeH_2$
0%
$NH_2$
0%
$CaH_2$
0%
$CuH_2$

Match the following

Sr.No	Column I	Sr.No	Column II
A.	$10$ vol of $H_2O_2$	1.	Perhydrol
B.	$20$ vol of $H_2O_2$	2.	$5.358 N$
C.	$30$ vol of $H_2O_2$	3.	$1.785N$
D.	$100$ vol of $H_2O_2$	4.	$3.57N$

0%
A-3, B-4, C-2, D-1
0%
A-1, B-2, C-3, D-4
0%
A-1, B-3, C-2, D-4
0%
A-4, B-2, C-3, D-1

$O _ { 2 }$ and

$H _ { 2 } O _ { 2 },$ the

$O - O$ bond lengths are

$1.21$ and

$1.48\mathring { A }$ respectively. In ozone, the average

$O - O$ bond length is :

0%
$1.28\mathring { A }$
0%
$1.18\mathring { A }$
0%
$1.44\mathring { A }$
0%
$1.52\mathring { A }$

On shaking

$H_2O_2$ with acidified potassium dichromate and ether, etheral layer becomes?

0%
Green
0%
Blue
0%
Red
0%
Colourless

Among

$CaH_2, NH_3, NaH$ and

$B_2H_6$ , which are covalent hydrides?

0%
$NH_3$ and $B_2H_6$
0%
$NaH$ and $CaH_2$
0%
$NaH$ and $NH_3$
0%
$CaH_2$ and $B_2H_6$

Explanation

$NH_3$ and

$B_2H_6$ are the covalent hydrides and

$CaH_2$ and

$NaH$ are the ionic hydride.

$N$ and

$B$ form covalent hydride as they have high electronegativity and small size.

Select the incorrect statement.

0%
Water can act as an acid as well as a base
0%
During photosynthesis water is oxidised to $O_2$
0%
In molecular $CuSO_4.5H_2O$ , all five $H_2O$ molecules are hydrogen bonded
0%
Density of water is maximum at $4^oC$

Hydrogen differ with alkali metals in which of the following aspect ?

0%
Formation of halides
0%
Formation of oxides
0%
Metallic character
0%
Atomicity

Which of the following will undergo hydride shift?

Structure of

$H_2O_2$ is:

0%
planar
0%
non-planar
0%
linear
0%
three- dimensional open cage

Which of the following molecule when combines with water,then

$H_2O$ molecules does attack at central atom?

0%
$PCl_3$
0%
$NCl_3$
0%
$ClF_5$
0%
$CO_2$

Which of the following statement is false about

$H_2 O_2$ ?

0%
Acts both as oxidising and reducing agent
0%
Pale blue liquid
0%
Can be oxidised by $O_3$
0%
Two $O-H$ bonds lie in same plane

Among the following in which hydrates

$H_{2}O$ molecules only occupy the interstitial site?

0%
$BaCl_{2}.2H_{2}O$
0%
$[Ni(H_{2}O)_{6}]^{2+}(NO_{3}^{-})_{2}$
0%
$CuSO_{4}.5H_{2}O$
0%
$All\ of\ these$

The $O-H$ bond length in $H_2O$ is $xA^o$ . The $O- H$ bond length in $H_2O_2$ is ?

0%
$< x$ $A^o$ .
0%
$x$ $A^o$ .
0%
$> x$ $A^o$ .
0%
$2x$ $A^o$ .

Which among the following cannot be used to generate

${{\text{H}}_{\text{2}}}$ ?

0%
${\text{Al}}\,{\text{ + NaOH}}$
0%
${\text{Zn + NaOH}}\,$
0%
${\text{Mg + NaOH}}$
0%
${\text{LiH + }}{{\text{H}}_{\text{2}}}{\text{O}}$

Explanation

Magnesium reacts with sodium hydroxide to form magnesium hydroxide and sodium metal.

$Mg\ +\ 2NaOH \longrightarrow Mg(OH)_2\ + 2Na$

Property higher for

$H_{2}O$ than

$H_{2}O_{2}$

0%
Dielectric constant
0%
Viscosity
0%
Melting point
0%
Boiling point

100 volume' hydrogen peroxide is often called:

0%
Fentons reagent
0%
Anitichlor
0%
Hyperol
0%
Merck's perhydrol

'Hydride Gap' is referred to which region of the periodic table?

0%
Groups 3, 4 and 5
0%
Groups 5, 6 and 7
0%
Groups 4, 5 and 6
0%
Groups 7, 8 and 9
0%
Groups 6, 7 and 8.

Which of the following statements are correct?

0%
Hydrides of group 13 act as Lewis acids
0%
Hydrides of group 14 are electron deficient hydrides
0%
Hydrides of group 14 act as Lewis acids
0%
Hydrides of group 15 act as Lewis acids

The least stable hydride of

$15^{th}$ group elements is

0%
$NH_3$
0%
$PH_3$
0%
$AsH_3$
0%
$SbH_3$
0%
$BiH_3$

Which one of the following atoms generally does not contain neutrons?

0%
Boron
0%
Hydrogen
0%
Nitrogen
0%
Lithium

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

$NH_3, PH_3, AsH_3, SbH_3, BiH_3$

0%
$NH_3, PH_3$
0%
$NH_3, BiH_3$
0%
$PH_3, BiH_3$
0%
$BiH_3, AsH_3$

lonic hydrides is/are usually :-

0%
Good electrically conductors when solid
0%
Easily reduced
0%
Good reducing agents
0%
Liquid at room temperature

The oxygen in hydrogen peroxide which is used in oxidation is bound by ..... bond.

0%
electrovalent bond
0%
hydrogen bond
0%
covalent bound
0%
hydrogen bridge bond

Hydride of which of the following element shown the highest tendency of hydrogen storage?

0%
N
0%
Al
0%
Pd
0%
Ca

$H_2O_2$ is stabilized by

0%
Dust
0%
Glass
0%
Metals
0%
Urea

$H_2$ gas can not be prepared by :-

0%
$Be\ +\ NaOH$
0%
$Na\ +\ NaOH$
0%
$Mg\ +\ NaOH$
0%
$By\ B\ and\ C\ method$

Which of the following represents saline hydrides?

0%
$KH,\,Ca{H_2},\,Ba{H_2}$
0%
$NaH,Si{H_4},KH$
0%
$N{H_3},{B_2}{H_6},Al{H_3}$
0%
$N{H_3},{H_2}O,HF$

Which of the following pairs will not produce dihydrogen gas ?

0%
$Cu + dil. HCl$
0%
$Fe + H_2SO_4$
0%
$Mg + steam$
0%
$Mg + alcohol$

Which gas is evolved when potassium carbonate is treated with dilute with

$HCl$ ?

0%
Hydrogen $(H_{2})$
0%
Sulphur dioxide $(SO_{2})$
0%
Carbon monoxide $(CO)$
0%
Carbon dioxide $(CO_{2})$

Which of the following ions does not liberate hydrogen gas on reaction with dilute acids?

0%
${\text{T}}{{\text{i}}^{{\text{2 + }}}}$
0%
${{\text{V}}^{{\text{2 + }}}}$
0%
${\text{C}}{{\text{r}}^{{\text{2 + }}}}$
0%
${\text{M}}{{\text{n}}^{2 + }}$

Only one element of forms hydride.

0%
group 6
0%
group 7
0%
group 8
0%
group 9

Which of the following statements are correct?
(I) Both melting and boilling points of

$H_{2}O$ are higher than those of

$H_{2} Te.$
(II) In both

$N_{2}O_{5}$ and

$N_{2}O_{4}$ all

$N-O$ bond lengths are equivalent.
(III) In both crystalline

$NaHCO_{3}$ and

$KHCO_{3}$ ,

$HCO_{3}^{-}$ forms only dimeric anion through hydrogen bond.
(IV) Amongst

$B_{2}$ ,

$C_{2}$ ,

$N_{2}^{-}$ and

$O_{2}$ ,

$N_{2}^{-}$ and

$O_{2}$ on further ionization (losing single electron)
thermodynamically more stable species is formed.

0%
(I) and (II)
0%
(III) and (IV)
0%
(II) and (III)
0%
(I) and (IV)

Hydrogen accepts an electron to form inert gas configuration. In this it resembles

0%
Halogen
0%
Alkali metals
0%
Chalcogens
0%
Alkaline earth metals

Explanation

Hydrogen accepts an electron to form inert gas configuration. In this, it resembles halogen as like halogen it gains 1 electron and attains noble gas configuration.

$H+e\to H^- \to [He]$

$F+e\to F^- \to [Ne]$

Find the volume of strength of

${ H }_{ 2 }{ O }_{ 2 }$ solutions prepared by mixing of 250 mL of 3 N

${ H }_{ 2 }{ O }_{ 2 }$ and 750 mL of 1 N

${ H }_{ 2 }{ O }_{ 2 }$ solution :-

0%
1.5 V
0%
8.4 V
0%
5.6 V
0%
11.2 V

Explanation

Normality of total solution is given by :

$N_1V_1 + N_2V_2 = N_f(V_1+V_2)$

$(250\times 3) +( 750\times1) = N_f(250+750)$

$750+750 = N_f (1000)$

$N_f =\dfrac{1500}{1000}$ =

$1.5$

Volume strength of

$H_2O_2 = 11.2\times M$

In terms of normality,

$N = M\times n$

n factor for

$H_2O_2$ is 2

$N = M\times 2$ and

$M= \dfrac{N}{2}$

Volume strength =

$11.2\times \dfrac{N}{2}$ =

$5.6 N$ =

$5.6\times Normality$

Volume strength of

$H_2O_2$ =

$5.6 \times 1.5$ =

$8.4V$

Hence, option B is correct .

Which of the following hydrides of the oxygen family shows the lowest boiling points?

0%
${ H }_{ 2 }O$
0%
${ H }_{ 2 }S$
0%
${ H }_{ 2 }Se$
0%
${ H }_{ 2 }Te$

$A$ : About

$77\%$ of industrial dihyducegen is produced from petro-chemicals.

$R$ : Process of producing producer gas from coal is known as coal gasification as well as water gas shift reaction.

0%
Both Assertion $\&$ Reason are true and the reason is the correct explanation of the assertion
0%
Both Assertion $\&$ Reason are true but the reason is not the correct explanation of the assertion
0%
Assertion is true statement but Reason is false.
0%
Both Assertion and Reason are false statements.

Which one of the following statements is incorrect?

0%
Sodium hydride is ionic.
0%
Beryllium chloride is covalent.
0%
${ CCl }_{ 4 }$ gives a white ppt. with ${ AgNO }_{ 3 }$ solution
0%
Bonds in $NaCl$ are non-directional.

Which of the following aqueous solution can not be used as buffer solution?

0%
$NH_{4}OH+NH_{4}CI$
0%
HCN + KCN
0%
AgCN
0%
$NH_{4}I$

Hydrogen is prepared from

${ H } _ { 2 }{ O }$ by adding:

0%
Ca, which acts as reducing agent
0%
Al, which acts as oxidising agent
0%
Ag, which acts as reducing agent
0%
Au, which acts as oxidising agent

Which of the following statement is false?

0%
Superoxides give hydrogen peroxide and oxygen with water.
0%
$Cr{ O }_{ 3 }$ is an acidic oxide.
0%
$Sn{ O }_{ 2 }$ is an amphoteric oxide.
0%
$K{ O }_{ 2 }$ is peroxide which with ${ H }_{ 2 }O$ forms hydrogen peroxide only.

A fresh

$H_{2}O_{2}$ solution is labelled as 11.35 V. Calculate its concentration in %w/v?

0%
2.5 %
0%
3.4 %
0%
4.2 %
0%
5.4 %

Which of the following statements do not define the characteristic property of water " water is a universal solvent"?

0%
It can dissolve maximum number of compounds
0%
It has very low dielectric constant
0%
It has high liquid range
0%
All of these

The volume strength of 1.5 N

$\mathrm { H } _ { 2 } \mathrm { O } _ { 2 }$ solution is:

0%
8.4
0%
4.8
0%
5.2
0%
8.8

The strength of

$\mathrm { H } _ { 2 } \mathrm { O } _ { 2 }$ (g/litre) in 11.2 volume solution of

$\mathrm { H } _ { 2 } \mathrm { O } _ { 2 }$ is:

0%
$17$
0%
$51$
0%
$34$
0%
$85$

Match the following

	column-1		column-II
A	10 vol ${ H }_{ 2 }{ O }_{ 2 }$	1	Pehydrol
B	20 vol ${ H }_{ 2 }{ O }_{ 2 }$	2	5.358 N
C	30 vol ${ H }_{ 2 }{ O }_{ 2 }$	3	1.785 M
D	100 vol ${ H }_{ 2 }{ O }_{ 2 }$	4	3.03 %

0%
A-4, B-3, C-2, D-1
0%
A-1, B-2, C-3, D-4
0%
A-1, B-3, C-2, D-4
0%
A-4, B-2, C-3, D-1

The structure of

${ H }_{ 2 }{ O }_{ 2 }$ is

0%
Planar
0%
Linear
0%
Spherical
0%
Nonplanar

The oxide that gives hydrogen peroxide

$({ H }_{ 2 }{ O }_{ 2 })$ on the treatment with a dilute acid

$({ H }_{ 2 }{ SO }_{ 4 })$ is

0%
${ MnO }_{ 2 }$
0%
${ PbO }_{ 2 }$
0%
$Na_{ 2 }{ O }_{ 2 }$
0%
${ TiO }_{ 2 }$

Explanation

$Na_2O_2$ upon reacting with dilute sulphuric acid gives hydrogen peroxide and sodium sulphate.

The chemical reaction is as follows :

$Na_2O_2 + H_2SO_4 \xrightarrow \ Na_2SO_4 + H_2O_2$

Hydrogen peroxide is used as

0%
An acid only
0%
A reductant only
0%
An oxidant only
0%
An oxidant , a reductant and an acid.

The volume strength of 0.8 N

$\mathrm { H } _ { 2 } \mathrm { O } _ { 2 }$ solution is:

0%
4.48
0%
8.96
0%
20.8
0%
5.2

Ammonia gas dissolves in water to form

${NH}_{4}OH$ . In this reaction water acts as:

0%
a conjugate base
0%
a non polar solvent
0%
an acid
0%
a base

CBSE Questions for Class 11 Medical Chemistry Hydrogen Quiz 12 - MCQExams.com

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Practice Class 11 Medical Chemistry Quiz Questions and Answers

CBSE Questions for Class 11 Medical Chemistry Hydrogen Quiz 12 - MCQExams.com

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Practice Class 11 Medical Chemistry Quiz Questions and Answers

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