51 + Mcqs in Hydrogen Page 1 McqOptions

1.	Which of the following statements concerning protium, deuterium and tritium is not true
A.	They are isotopes of each other
B.	They have similar electronic configurations
C.	They exist in the nature in the ratio of 1 : 2 : 3
D.	Their mass numbers are in the ratio of 1 : 2 : 3
Answer» D. Their mass numbers are in the ratio of 1 : 2 : 3

Discussion

2.	Hydrogen molecule differs from chlorine molecule in the following respect
A.	Hydrogen molecule is non-polar but chlorine molecule is polar
B.	Hydrogen molecule is polar while chlorine molecule is non-polar
C.	Hydrogen molecule can form intermolecular hydrogen bonds but chlorine molecule does not
D.	Hydrogen molecule cannot participate in coordination bond formation but chlorine molecule can
Answer» E.

Discussion

3.	In all its properties, hydrogen resembles
A.	Alkali metals only
B.	Halogen only
C.	Both alkali metals and halogens
D.	Neither alkali metals nor halogens
Answer» D. Neither alkali metals nor halogens

Discussion

4.	Protonic acid is
A.	A compound that form solvated hydrogen ion in polar solvent
B.	An acid which accepts the proton
C.	A compound that forms hydride ion in polar solvent
D.	An acid which donates the proton
Answer» B. An acid which accepts the proton

Discussion

5.	Electrolysis of fused sodium hydride liberate hydrogen at the
A.	Anode
B.	Cathode
C.	Cathode and anode both
D.	None of these
Answer» B. Cathode

Discussion

6.	Hydrogen readily combines with metals and thus shows its
A.	Electropositive character
B.	Electronegative character
C.	Both a and b
D.	None of these
Answer» C. Both a and b

Discussion

7.	The oxidation states shown by hydrogen are
A.	-1 only
B.	Zero only
C.	+1, -1, 0
D.	+1 only
Answer» D. +1 only

Discussion

8.	Hydrogen readily combines with non-metals and thus it shows its
A.	Electronegativity character
B.	Electropositive character
C.	Both a and b
D.	None of these
Answer» D. None of these

Discussion

9.	Which position for hydrogen explain all its properties
A.	At the top of halogen
B.	At the top of alkali metals
C.	At the top of carbon family
D.	None of these
Answer» E.

Discussion

10.	Hydrogen acts as a reducing agent and thus resembles
A.	Halogen
B.	Noble gas
C.	Radioactive elements
D.	Alkali metals
Answer» E.

Discussion

11.	Ionization energy of hydrogen is
A.	Equal to that of chlorine
B.	Lesser than that of chlorine
C.	Slightly higher than that of chlorine
D.	Much higher than that of chlorine
Answer» D. Much higher than that of chlorine

Discussion

12.	Hydrogen is
A.	Electropositive
B.	Electronegative
C.	Both electropositive as well as electronegative
D.	Neither electropositive nor electronegative
Answer» D. Neither electropositive nor electronegative

Discussion

13.	Which of the following statements is most applicable to hydrogen
A.	It can act as a reducing agent
B.	It can act as an oxidising agent
C.	It can act both as oxidising and reducing agent
D.	It can neither act as oxidising nor as a reducing agent
Answer» D. It can neither act as oxidising nor as a reducing agent

Discussion

14.	Which of the halogen has maximum affinity for hydrogen
A.	F2
B.	Cl2
C.	Br2
D.	I2
Answer» B. Cl2

Discussion

15.	When electric current is passed through an ionic hydride in the molten state
A.	Hydrogen is liberated at the anode
B.	Hydrogen is liberated at the cathode
C.	No reaction takes place
D.	Hydride ion migrates towards cathode
Answer» B. Hydrogen is liberated at the cathode

Discussion

16.	Which of the following terms is not correct for hydrogen
A.	Its molecule is diatomic
B.	It exists both as H+ and H− in different chemical compounds
C.	It is the only species which has no neutrons in the nucleus
D.	Heavy water is unstable because hydrogen is substituted by its isotope deuterium
Answer» E.

Discussion

17.	Which of the following explanation is best for not placing hydrogen with alkali metals or halogen
A.	The ionization energy of hydrogen is high for group of alkali metals or halogen
B.	Hydrogen can form compounds
C.	Hydrogen is a much lighter element than the alkali metals or halogens
D.	Hydrogen atom does not contain any neutron
Answer» C. Hydrogen is a much lighter element than the alkali metals or halogens

Discussion

18.	Hydrogen combines with other elements by
A.	Losing an electron
B.	Gaining an electron
C.	Sharing an electron
D.	Losing, gaining or sharing electron
Answer» E.

Discussion

19.	An element reacts with hydrogen to form a compound A which on treatment with water liberates hydrogen gas. The element can be
A.	Nitrogen
B.	Chlorine
C.	Selenium
D.	Calcium
Answer» E.

Discussion

20.	Which of the following metal do not liberate hydrogen from dilute hydrochloric acid
A.	Zn
B.	Mg
C.	Fe
D.	Au
Answer» E.

Discussion

21.	Hydrogen can be prepared by mixing steam, and water gas at 500?C in the presence of  Fe3O4  and  Cr2O3 . This process is called
A.	Nelson process
B.	Serpeck?s process
C.	Bosch process
D.	Parke?s process
Answer» D. Parke?s process

Discussion

22.	Hydrogen can be fused to form helium at [AFMC 2005]
A.	High temperature and high pressure
B.	High temperature and low pressure
C.	Low temperature and high pressure
D.	Low temperature and low pressure
Answer» B. High temperature and low pressure

Discussion

23.	Hydrogen ion  H−  is isoelectronic with
A.	Li
B.	He
C.	H+
D.	Li−
Answer» C. H+

Discussion

24.	The difference between heat of adsorption of ortho and para hydrogen is
A.	0.4kJ mol1
B.	0.8kJ mol1
C.	Zero
D.	None of these
Answer» B. 0.8kJ mol1

Discussion

25.	Ortho-hydrogen and para-hydrogen resembles in which of the following property
A.	Thermal conductivity
B.	Magnetic properties
C.	Chemical properties
D.	Heat capacity
Answer» D. Heat capacity

Discussion

26.	An ionic compound is dissolved simultaneously in heavy water and simple water. Its solubility is
A.	Larger in heavy water
B.	Smaller in heavy water
C.	Solubility is same in both
D.	Smaller in simple water
Answer» C. Solubility is same in both

Discussion

27.	Number of nucleons in  D2  molecule is
A.	1
B.	2
C.	3
D.	4
Answer» E.

Discussion

28.	The sum of protons, electrons and neutrons in the heaviest isotope of hydrogen is
A.	6
B.	5
C.	4
D.	3
Answer» D. 3

Discussion

29.	Which is poorest reducing agent
A.	Nascent hydrogen
B.	Atomic hydrogen
C.	Dihydrogen
D.	All have same reducing strength
Answer» D. All have same reducing strength

Discussion

30.	Metals like platinum and palladium can absorb large volumes of hydrogen under special conditions. Such adsorbed hydrogen by the metal is known as
A.	Adsorbed hydrogen
B.	Occluded hydrogen
C.	Occluded hydrogen
D.	Atomic hydrogen
Answer» C. Occluded hydrogen

Discussion

31.	The metal which displaces hydrogen from a boiling caustic soda solution is
A.	As
B.	Zn
C.	Mg
D.	Mg
Answer» C. Mg

Discussion

32.	Which of the following produces hydrolith with dihydrogen
A.	Mg
B.	Al
C.	Cu
D.	Ca
Answer» E.

Discussion

33.	The adsorption of hydrogen by metals is called [EAMCET 1999; Manipal PMT 1999]
A.	Dehydrogenation
B.	Hydrogenation
C.	Occlusion
D.	Adsorption
Answer» D. Adsorption

Discussion

34.	Hydrogen does not combine with
A.	Antimony
B.	Sodium
C.	Bismuth
D.	Helium
Answer» E.

Discussion

35.	Hydrogen cannot reduce
A.	Hot CuO
B.	Hot CuO
C.	Hot CuO
D.	Hot CuO
Answer» E.

Discussion

36.	question_answer16) Ordinary hydrogen at room temperature is a mixture of
A.	75% of o-Hydrogen + 25% of p-Hydrogen
B.	25% of o-Hydrogen + 75% of p-Hydrogen
C.	50% of o-Hydrogen + 50% of p-Hydrogen
D.	1% of o-Hydrogen + 99% of p-Hydrogen
Answer» B. 25% of o-Hydrogen + 75% of p-Hydrogen

Discussion

37.	The colour of hydrogen is [MP PET 2004]
A.	Black
B.	Yellow
C.	Orange
D.	Colourless
Answer» E.

Discussion

38.	The nuclei of tritium  (H3)  atom would contain neutrons
A.	1
B.	2
C.	3
D.	4
Answer» C. 3

Discussion

39.	Which of the following can adsorb largest volume of hydrogen gas
A.	Finely divided platinum
B.	Finely divided nickel
C.	Colloidal palladium
D.	Colloidal platinum
Answer» D. Colloidal platinum

Discussion

40.	Hydrogen from HCl can be prepared by [Pb. CET 1997]
A.	Mg
B.	Cu
C.	P
D.	Pt.
Answer» B. Cu

Discussion

41.	Action of water or dilute mineral acids on metals can give [Kerala (Med.) 2002]
A.	Monohydrogen
B.	Tritium
C.	Dihydrogen
D.	Trihydrogen
Answer» D. Trihydrogen

Discussion

42.	Ortho and para hydrogen differ in [AFMC 2001]
A.	Proton spin
B.	Electron spin
C.	Nuclear charge
D.	Nuclear charge
Answer» B. Electron spin

Discussion

43.	Hydrogen resembles in many of its properties [MH CET 2001]
A.	Halogen
B.	Alkali metals
C.	Both a and b
D.	None of these
Answer» D. None of these

Discussion

44.	Which of the following reaction produces hydrogen [AIIMS 2002]
A.	Mg+H2O
B.	BaO2+HCl
C.	H2S4O8+H2O
D.	Na2O2+2HCl
Answer» B. BaO2+HCl

Discussion

45.	Among the following, identify the compound which cannot act as both oxidising and reducing agents [AMU 2002]
A.	H2O2
B.	H2
C.	SO2
D.	Cl2
Answer» C. SO2

Discussion

46.	On reaction with Mg, very dilute nitric acid produces [CPMT 2003]
A.	NH3
B.	Nitrous oxide
C.	Nitric oxide
D.	Hydrogen
Answer» E.

Discussion

47.	Which is distilled first [Pb. PMT 2002]
A.	Liquid CO2
B.	Liquid N2
C.	Liquid O2
D.	Liquid H2
Answer» E.

Discussion

48.	Which pair does not show hydrogen isotopes [UPSEAT 2003]
A.	Ortho hydrogen and para hydrogen
B.	Protium and deuterium
C.	Deuterium and tritium
D.	Tritium and protium
Answer» B. Protium and deuterium

Discussion

49.	Hydrogen burns in air with a [RPET 2003]
A.	Light bluish flame
B.	Yellow flame
C.	Green flame
D.	None of these
Answer» B. Yellow flame

Discussion

50.	Metal hydride on treatment with water gives [Bihar CEE 1995]
A.	H2O2
B.	H2O
C.	Acid
D.	Hydrogen
Answer» E.

Discussion

Explore topic-wise MCQs in Maharashtra CET.

Which&nbsp;of&nbsp;the&nbsp;following&nbsp;statements&nbsp;concerning&nbsp;protium,&nbsp;deuterium&nbsp;and&nbsp;tritium&nbsp;is&nbsp;not&nbsp;true

&nbsp;Hydrogen&nbsp;molecule&nbsp;differs&nbsp;from&nbsp;chlorine&nbsp;molecule&nbsp;in&nbsp;the&nbsp;following&nbsp;respect

In&nbsp;all&nbsp;its&nbsp;properties,&nbsp;hydrogen&nbsp;resembles

Protonic&nbsp;acid&nbsp;is

&nbsp;Electrolysis&nbsp;of&nbsp;fused&nbsp;sodium&nbsp;hydride&nbsp;liberate&nbsp;hydrogen&nbsp;at&nbsp;the

Hydrogen&nbsp;readily&nbsp;combines&nbsp;with&nbsp;metals&nbsp;and&nbsp;thus&nbsp;shows&nbsp;its

The&nbsp;oxidation&nbsp;states&nbsp;shown&nbsp;by&nbsp;hydrogen&nbsp;are

Hydrogen&nbsp;readily&nbsp;combines&nbsp;with&nbsp;non-metals&nbsp;and&nbsp;thus&nbsp;it&nbsp;shows&nbsp;its

&nbsp;Which&nbsp;position&nbsp;for&nbsp;hydrogen&nbsp;explain&nbsp;all&nbsp;its&nbsp;properties

Hydrogen&nbsp;acts&nbsp;as&nbsp;a&nbsp;reducing&nbsp;agent&nbsp;and&nbsp;thus&nbsp;resembles

&nbsp;Ionization&nbsp;energy&nbsp;of&nbsp;hydrogen&nbsp;is

Hydrogen&nbsp;is

Which&nbsp;of&nbsp;the&nbsp;following&nbsp;statements&nbsp;is&nbsp;most&nbsp;applicable&nbsp;to&nbsp;hydrogen

Which&nbsp;of&nbsp;the&nbsp;halogen&nbsp;has&nbsp;maximum&nbsp;affinity&nbsp;for&nbsp;hydrogen

When&nbsp;electric&nbsp;current&nbsp;is&nbsp;passed&nbsp;through&nbsp;an&nbsp;ionic&nbsp;hydride&nbsp;in&nbsp;the&nbsp;molten&nbsp;state

Which&nbsp;of&nbsp;the&nbsp;following&nbsp;terms&nbsp;is&nbsp;not&nbsp;correct&nbsp;for&nbsp;hydrogen

&nbsp;Which&nbsp;of&nbsp;the&nbsp;following&nbsp;explanation&nbsp;is&nbsp;best&nbsp;for&nbsp;not&nbsp;placing&nbsp;hydrogen&nbsp;with&nbsp;alkali&nbsp;metals&nbsp;or&nbsp;halogen

&nbsp;Hydrogen&nbsp;combines&nbsp;with&nbsp;other&nbsp;elements&nbsp;by

An&nbsp;element&nbsp;reacts&nbsp;with&nbsp;hydrogen&nbsp;to&nbsp;form&nbsp;a&nbsp;compound&nbsp;A&nbsp;which&nbsp;on&nbsp;treatment&nbsp;with&nbsp;water&nbsp;liberates&nbsp;hydrogen&nbsp;gas.&nbsp;The&nbsp;element&nbsp;can&nbsp;be

&nbsp;Which&nbsp;of&nbsp;the&nbsp;following&nbsp;metal&nbsp;do&nbsp;not&nbsp;liberate&nbsp;hydrogen&nbsp;from&nbsp;dilute&nbsp;hydrochloric&nbsp;acid

&nbsp;Hydrogen&nbsp;can&nbsp;be&nbsp;prepared&nbsp;by&nbsp;mixing&nbsp;steam,&nbsp;and&nbsp;water&nbsp;gas&nbsp;at&nbsp;500?C&nbsp;in&nbsp;the&nbsp;presence&nbsp;of&nbsp; Fe3O4 &nbsp;and&nbsp; Cr2O3 .&nbsp;This&nbsp;process&nbsp;is&nbsp;called

Hydrogen&nbsp;can&nbsp;be&nbsp;fused&nbsp;to&nbsp;form&nbsp;helium&nbsp;at&nbsp;[AFMC&nbsp;2005]

&nbsp;Hydrogen&nbsp;ion&nbsp; H&minus; &nbsp;is&nbsp;isoelectronic&nbsp;with

The&nbsp;difference&nbsp;between&nbsp;heat&nbsp;of&nbsp;adsorption&nbsp;of&nbsp;ortho&nbsp;and&nbsp;para&nbsp;hydrogen&nbsp;is

Ortho-hydrogen&nbsp;and&nbsp;para-hydrogen&nbsp;resembles&nbsp;in&nbsp;which&nbsp;of&nbsp;the&nbsp;following&nbsp;property

&nbsp;An&nbsp;ionic&nbsp;compound&nbsp;is&nbsp;dissolved&nbsp;simultaneously&nbsp;in&nbsp;heavy&nbsp;water&nbsp;and&nbsp;simple&nbsp;water.&nbsp;Its&nbsp;solubility&nbsp;is

Number&nbsp;of&nbsp;nucleons&nbsp;in&nbsp; D2 &nbsp;molecule&nbsp;is

The&nbsp;sum&nbsp;of&nbsp;protons,&nbsp;electrons&nbsp;and&nbsp;neutrons&nbsp;in&nbsp;the&nbsp;heaviest&nbsp;isotope&nbsp;of&nbsp;hydrogen&nbsp;is

Which&nbsp;is&nbsp;poorest&nbsp;reducing&nbsp;agent

Metals&nbsp;like&nbsp;platinum&nbsp;and&nbsp;palladium&nbsp;can&nbsp;absorb&nbsp;large&nbsp;volumes&nbsp;of&nbsp;hydrogen&nbsp;under&nbsp;special&nbsp;conditions.&nbsp;Such&nbsp;adsorbed&nbsp;hydrogen&nbsp;by&nbsp;the&nbsp;metal&nbsp;is&nbsp;known&nbsp;as

The&nbsp;metal&nbsp;which&nbsp;displaces&nbsp;hydrogen&nbsp;from&nbsp;a&nbsp;boiling&nbsp;caustic&nbsp;soda&nbsp;solution&nbsp;is

Which&nbsp;of&nbsp;the&nbsp;following&nbsp;produces&nbsp;hydrolith&nbsp;with&nbsp;dihydrogen

The&nbsp;adsorption&nbsp;of&nbsp;hydrogen&nbsp;by&nbsp;metals&nbsp;is&nbsp;called&nbsp;[EAMCET&nbsp;1999;&nbsp;Manipal&nbsp;PMT&nbsp;1999]

Hydrogen&nbsp;does&nbsp;not&nbsp;combine&nbsp;with

Hydrogen&nbsp;cannot&nbsp;reduce

question_answer16)&nbsp;Ordinary&nbsp;hydrogen&nbsp;at&nbsp;room&nbsp;temperature&nbsp;is&nbsp;a&nbsp;mixture&nbsp;of

The&nbsp;colour&nbsp;of&nbsp;hydrogen&nbsp;is&nbsp;[MP&nbsp;PET&nbsp;2004]

The&nbsp;nuclei&nbsp;of&nbsp;tritium&nbsp; (H3) &nbsp;atom&nbsp;would&nbsp;contain&nbsp;neutrons

Which&nbsp;of&nbsp;the&nbsp;following&nbsp;can&nbsp;adsorb&nbsp;largest&nbsp;volume&nbsp;of&nbsp;hydrogen&nbsp;gas

Hydrogen&nbsp;from&nbsp;HCl&nbsp;can&nbsp;be&nbsp;prepared&nbsp;by&nbsp;[Pb.&nbsp;CET&nbsp;1997]

Action&nbsp;of&nbsp;water&nbsp;or&nbsp;dilute&nbsp;mineral&nbsp;acids&nbsp;on&nbsp;metals&nbsp;can&nbsp;give&nbsp;[Kerala&nbsp;(Med.)&nbsp;2002]

Ortho&nbsp;and&nbsp;para&nbsp;hydrogen&nbsp;differ&nbsp;in&nbsp;[AFMC&nbsp;2001]

&nbsp;Hydrogen&nbsp;resembles&nbsp;in&nbsp;many&nbsp;of&nbsp;its&nbsp;properties&nbsp;[MH&nbsp;CET&nbsp;2001]

Which&nbsp;of&nbsp;the&nbsp;following&nbsp;reaction&nbsp;produces&nbsp;hydrogen&nbsp;[AIIMS&nbsp;2002]

Among&nbsp;the&nbsp;following,&nbsp;identify&nbsp;the&nbsp;compound&nbsp;which&nbsp;cannot&nbsp;act&nbsp;as&nbsp;both&nbsp;oxidising&nbsp;and&nbsp;reducing&nbsp;agents&nbsp;[AMU&nbsp;2002]

On&nbsp;reaction&nbsp;with&nbsp;Mg,&nbsp;very&nbsp;dilute&nbsp;nitric&nbsp;acid&nbsp;produces&nbsp;[CPMT&nbsp;2003]

&nbsp;Which&nbsp;is&nbsp;distilled&nbsp;first&nbsp;[Pb.&nbsp;PMT&nbsp;2002]

Which&nbsp;pair&nbsp;does&nbsp;not&nbsp;show&nbsp;hydrogen&nbsp;isotopes&nbsp;[UPSEAT&nbsp;2003]

&nbsp;Hydrogen&nbsp;burns&nbsp;in&nbsp;air&nbsp;with&nbsp;a&nbsp;[RPET&nbsp;2003]

Metal&nbsp;hydride&nbsp;on&nbsp;treatment&nbsp;with&nbsp;water&nbsp;gives&nbsp;[Bihar&nbsp;CEE&nbsp;1995]

Which of the following statements concerning protium, deuterium and tritium is not true

Hydrogen molecule differs from chlorine molecule in the following respect

In all its properties, hydrogen resembles

Protonic acid is

Electrolysis of fused sodium hydride liberate hydrogen at the

Hydrogen readily combines with metals and thus shows its

The oxidation states shown by hydrogen are

Hydrogen readily combines with non-metals and thus it shows its

Which position for hydrogen explain all its properties

Hydrogen acts as a reducing agent and thus resembles

Ionization energy of hydrogen is

Hydrogen is

Which of the following statements is most applicable to hydrogen

Which of the halogen has maximum affinity for hydrogen

When electric current is passed through an ionic hydride in the molten state

Which of the following terms is not correct for hydrogen

Which of the following explanation is best for not placing hydrogen with alkali metals or halogen

Hydrogen combines with other elements by

An element reacts with hydrogen to form a compound A which on treatment with water liberates hydrogen gas. The element can be

Which of the following metal do not liberate hydrogen from dilute hydrochloric acid

Hydrogen can be prepared by mixing steam, and water gas at 500?C in the presence of Fe3O4 and Cr2O3 . This process is called

Hydrogen can be fused to form helium at [AFMC 2005]

Hydrogen ion H− is isoelectronic with

The difference between heat of adsorption of ortho and para hydrogen is

Ortho-hydrogen and para-hydrogen resembles in which of the following property

An ionic compound is dissolved simultaneously in heavy water and simple water. Its solubility is

Number of nucleons in D2 molecule is

The sum of protons, electrons and neutrons in the heaviest isotope of hydrogen is

Which is poorest reducing agent

Metals like platinum and palladium can absorb large volumes of hydrogen under special conditions. Such adsorbed hydrogen by the metal is known as

The metal which displaces hydrogen from a boiling caustic soda solution is

Which of the following produces hydrolith with dihydrogen

The adsorption of hydrogen by metals is called [EAMCET 1999; Manipal PMT 1999]

Hydrogen does not combine with

Hydrogen cannot reduce

question_answer16) Ordinary hydrogen at room temperature is a mixture of

The colour of hydrogen is [MP PET 2004]

The nuclei of tritium (H3) atom would contain neutrons

Which of the following can adsorb largest volume of hydrogen gas

Hydrogen from HCl can be prepared by [Pb. CET 1997]

Action of water or dilute mineral acids on metals can give [Kerala (Med.) 2002]

Ortho and para hydrogen differ in [AFMC 2001]

Hydrogen resembles in many of its properties [MH CET 2001]

Which of the following reaction produces hydrogen [AIIMS 2002]

Among the following, identify the compound which cannot act as both oxidising and reducing agents [AMU 2002]

On reaction with Mg, very dilute nitric acid produces [CPMT 2003]

Which is distilled first [Pb. PMT 2002]

Which pair does not show hydrogen isotopes [UPSEAT 2003]

Hydrogen burns in air with a [RPET 2003]

Metal hydride on treatment with water gives [Bihar CEE 1995]