Hydrogen and its Compounds: Chemistry questions with solutions for IITJEE, NEET, AIPMT, KIITEE, VITEEE, WBJEE


Chemistry questions with solutions (MCQ) helpful for preparation of NEET, AIPMT, IITJEE, KIITEE, VITEEE, WBJEE, COMEDK and all other medical and engineering entrance exams. 
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Chemistry Test Series Questions: Hydrogen and its Compounds (Syllabus)

Position of hydrogen in the periodic table; Discovery, Occurrence, Preparation, Properties and Industrial Applications of Hydrogen; Dihydrogen - Isotopes of hydrogen, Properties, Preparation and Uses of dihydrogen; Heavy Hydrogen or Deuterium; Tritium; Hydrides and their classification; Water - structure of water and ice, properties of water, hard and soft water, Hydrogen Peroxide; Heavy water.     

Chemistry Practice Questions: Hydrogen & its Compounds

Multiple Choice Questions (MCQs) – Set 1 (Q. No. (1-10)

Question 1: Hydrogen is prepared from H2O by adding –
a. Ca, which act as reducing agent
b. Al, which acts as oxidising agent
c. Ag, which acts as reducing agent
d. Au, which acts as oxidising agent

Question 2: The ionisation energy of hydrogen is –
a. Greater than inert gases
b. Nearer to inert gases
c. Nearer to halogens
d. Nearer to alkaline earth metals

Question 3: Hydrogen gas will not reduce:
a. Heated cupric oxide
b. Heated ferric oxide
c. Heated stannic oxide
d. Heated aluminium oxide

Question 4: Which one of the following reactions does not form gaseous product?
a. PbO2 + H2O2
b. PbS + H2O2
c. Cl2 + H2O2
d. Na2CO3 + H2O2

Question 5: Hydrogen is –
a. Electropositive
b. Electronegative
c. Both electropositive as well as electronegative
d. Neither electropositive nor electronegative

Question 6: Solid H2O2 has non planar and non-linear structure based on –
a. Dipole moment
b. X-ray study
c. Both a & b
d. Chemical method

Question 7: Hydride of certain non-metallic element ‘X’ is amphoteric in nature. The hydride of ‘X’ also reacts with calcium hydride (hydrolith) to liberate dihydrogen gas. The element ‘X’ is:
a. Nitrogen
b. Carbon
c. Oxygen
d. Sulphur

Question 8: H2O2 → H2O + O2
This represents –
a. Oxidation of H2O2
b. Reduction of H2O2
c. Disproportionation of H2O2
d. Acidic nature of H2O2

Question 9: Which of the following hydrides are generally non-stoichiometric in in nature?
a. Ionic hydride
b. Molecular hydrides
c. Interstitial hydride
d. Covalent hydrides

Question 10: The number of possible hydrogen molecules formed from its isotopes is –
a. 3
b. 6
c. 9
d. 12
hydrogen and its compounds
Solutions of Chemistry Test Series (MCQ) – Set 1 (Q. No. 1 – 10)
Answer 1: (a).   Answer 2: (c).   Answer 3: (d).
Answer 4: (b) Hint: PbS + 4H2O2 → PbSO4 + 4H2O2
Answer 5: (c) Hint: In electronegativity of hydrogen is in between metals and non-metals so it behaves as both electropositive and electronegative. It can lose electrons to form H+ ion and it can also gain electron to from H- ion. 
Answer 6: (c).
Answer 7: (c) Hint: ‘X’ is oxygen. H2O is amphoteric. CaH2 + 2H2O → Ca(OH)2 + 2H2
Answer 8: (c).
Answer 9: (c) Hint: Interstitial hydrides are non-stoichiometric hydrides and thus deficient in hydrogen. Transition and inner transition elements at elevated temperature absorb hydrogen into the interstices of their lattices to yield metal like hydrides.
Answer 10: (b).

HYDROGEN AND ITS COMPOUNDS - More Objective Questions with Answers

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