CBSE Class 11 Chemistry Hydrogen Worksheet Set D

Hydrogen MCQ Questions with Answers Class 11 Chemistry

Question- Which of the following is wrong about H₂O₂? It is used

(a) As aerating agent in production of spong rubber

(b) As an antichlor

(c) For restoring white colour of blackened lead painting

(d) None of these

Answer-(d)

Question-The numbers of protons, electrons and neutrons in a molecule of heavy water are respectively :

(a) 8, 10, 11

(b) 10, 10, 10

(c) 10, 11, 10

(d) 11, 10, 10

Answer-(b)

Question-Hydrogen will not reduce

(a) heated cupric oxide

(d) heated ferric oxide

(c) heated stannic oxide

(d) heated aluminium oxide

Answer-(d)

Question-What is formed when calcium carbide reacts with heavy water?

(a) C₂D₂

(b) CaD₂

(c) Ca₂D₂O

(d) CD₂

Answer-(a)

Question-Which of the following fuel is used for runnning the automobiles first time in the history of India during October 2005?

(a) D₂O

(b) H₂O₂

(c) D₂

(d) H₂

Answer-(d)

Question- Which of the following is correct about heavy water ?

(a) Water at 4°C having maximum density is known as heavy water

(b) It is heavier than water (H₂O)

(c) It is formed by the combination of heavier isotope of hydrogen with oxygen

(d) None of these

Answer-(c)

Question-Choose the incorrect statement

(a) Dihydrogen can release more energy than petrol.

(b) The only pollutant in combustion of dihydrogen is carbon dioxide.

(c) Hydrogen economy is based on the principle of transportation and storage of energy in the form of liquid or gaseous dihydrogen

(d) Hydrogen economy has advantage that energy is transmitted in the form of dihydrogen and not as electric power.

Answer-(b)

Question-Some statements about heavy water are given below:
(i) Heavy water is used as a moderator in nuclear reactors.
(ii) Heavy water is more associated than ordinary water.
(iii) Heavy water is more effective solvent than ordinary water.
Which of the above statements are correct?

(a) (i) and (iii)

(b) (i) and (ii)

(c) (i), (ii) and (iii)

(d) (ii) and (iii)

Answer-(b)

Question- D₂O is used in

(a) motor vehicles

(b) nuclear reactor

(c) medicine (d) insecticide

Answer-(b)

Question-Which of the following statement(s) is/are incorrect?
(i) Dihydrogen reduces copper (II) oxide to copper
(ii) Reaction of dihydrogen with sodium gives sodium hydride.
(iii) Hydroformylation of olefins yields aldehydes which further undergo reduction to give alcohols.
(iv) Hydrogenation of vegetable oils using iron as catalyst gives edible fats.

(a) (i), (ii) and (iii)

(b) (i) and (iv)

(c) (iv) only

(d) (iii) and (iv)

Answer-(c)

Question-Heavy water is represented as

(a) H₂¹⁸O

(b) D₂O

(c) D₂ ¹⁸O

(d) H₂O at 4°C

Answer-(b)

Question-The sum of the number of neutrons and protons in all the three isotopes of hydrogen is

(a) 6

(b) 5

(c) 4

(d) 3

Answer-(a)

Question-D₂O is preferred to H₂O, as a moderator, in nuclear reactors because

(a) D₂O slows down fast neutrons better

(b) D₂O has high specific heat

(c) D₂O is cheaper

(d) None of these

Answer-(d)

More Question

Instructions:

1. All questions are compulsory.

2. Please give the explanation for the answer where applicable.

Q1 - What is the common name of Deuterium? 

Q2 - Name the gases which present in Water Gas?

Q3 - What is the common name of Water Gas? 

Q4 - Explain the term Electron-deficient? 

Q5 - Explain the term Electron rich hydrides? 

Q6 - Which of the hydrides behave as Lewis acid and Lewis bases? 

Q7 - Explain the structure of water molecule ? 

Q8 - Differentiate between Ortho and Para hydrogen ? 

Q9 - How is pure hydrogen prepared in laboratory?

Please refer to the link below for CBSE Class 11 Chemistry Hydrogen Worksheet Set D