Multiple Choice Questions and Answers on Class 11 Chemistry Chapter 9 Hydrogen

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Questions
1 BaCl2. xH2O is which type of hydrate and x is?
A H-bonded, 4
B Interstitial,2
C Interstitial,4
D Coordinated,2

Answer:Interstitial,2
2 Industrially Hydrogen peroxide is prepared by which method?
A Electrolytic oxidation of acidified sulphate solutions
B Exhaustive electrolysis of water
C Acidifying barium peroxide
D Auto oxidation of 2-alkyl anthraquinols

Answer:Auto oxidation of 2-alkyl anthraquinols
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3 A commercially marketed sample of H2O2 is:
A 2 V
B 10 V
C 50 V
D 100 V

Answer:10 V
4 Cation exchange resins contain ____ molecule.
A Large, inorganic, water-insoluble
B Small, inorganic, water-soluble
C Large, organic, water-insoluble
D Small, organic, water-soluble

Answer:Large, organic, water-insoluble
5 In ice crystal structure distance between two oxygen atoms is about:
A Approximately equal to O-H bond length
B More than the double of O-H bond length
C Less than O-H bond length
D More than triple of O-H bond length

Answer:More than the double of O-H bond length
6 Magnesium ion forms which ppt on treatment with washing soda and calcium hydroxide respectively?
A In both Mg(OH)2
B In both MgCO3
C MgCO3 and Mg(OH)2
D Mg(OH)2 and MgCO3

Answer:MgCO3 and Mg(OH)2
7 At Atmospheric pressure ice crystallizes in:
A Hexagonal form
B Trigonal form
C Tetragonal form
D Cubic form

Answer:Hexagonal form
8 Due to _____ with polar molecules, even covalent compounds like alcohol and carbohydrates dissolve in water. Fill in the blank:
A Dipole induced dipole interaction
B H-Bonding
C Van der Waal interactions
D London Force

Answer:H-Bonding
9 Incorrect with respect to metallic hydrides:
A Metallic hydrides are hydrogen deficient.
B Metallic hydride retain their metallic conductivity
C Nickel and Actinium have different lattices from that of parent metal
D These hydrides conduct as efficiently as their parent metals

Answer:These hydrides conduct as efficiently as their parent metals
10 Which of the following makes the least contribution to the total world’s water supply?
A River
B Lakes
C Soil moisture
D Atmospheric Water Vapor

Answer:River
11 Which of the following statement is correct?
A All group 13 elements form electron-deficient compounds except Aluminum
B Dihydrogen does not produce any Pollution
C It produces greater energy per mole than gasoline and other fuels
D Lithium hydride reacts with Cl2 at moderate temperature to form Hydrochloric acid

Answer:Dihydrogen does not produce any Pollution
12 Select the correct Statement:
A A mixture of CO and H2 is used for the preparation of methanoic acid
B Methane and steam react to give carbon dioxide and hydrogen
C Isotopes of hydrogen have almost the same physical property
D Isotopes have a difference in their rate of reactions

Answer:Isotopes have a difference in their rate of reactions
13 Which of the following Statement is incorrect?
A Dihydrogen is used in the manufacture of Polyunsaturated vegetable oils
B The largest single of dihydrogen is in the manufacturing of Ammonia
C Many metals combine at high temperature with dihydrogen
D Hydroformylation of alkene leads to an increase in no. of carbon atoms in the chain

Answer:Dihydrogen is used in the manufacture of Polyunsaturated vegetable oils
14 Lithium hydride reacts with aluminum chloride to give:
A LiCl only
B Aluminium Hydride
C Lithium Aluminium Hydride
D Both 1 and 3

Answer:Both 1 and 3
15 The ionization energy of hydrogen is similar to which halogen?
A Fluorine
B Chlorine
C Iodine
D Bromine

Answer:Chlorine
16 Single Bond energy is highest for which molecule?
A H-H Bond
B C-C Bond
C F-F Bond
D Cl-Cl Bond

Answer:H-H Bond
17 Presently most of the industrial dihydrogen gas is prepared from?
A Electrolysis of water
B Coal
C Petrochemicals
D Electrolysis of brine

Answer:Petrochemicals
18 Arrange the following in their increasing order of bond energy?
A H2, F2, D2
B F2, H2, D2
C D2, F2, H2
D H2, D2, F2

Answer:F2, H2, D2
19 Internuclear distance between H2 and D2 is:
A More for H2
B More for D2
C Equal for both
D Vary with Temperature

Answer:Equal for both
20 Catalyst used in the reaction of CO with steam is?
A Copper Chromate
B Cadmium Oxide
C Nickel
D Iron Chromate

Answer:Iron Chromate

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