Quiz for Hydrogen and its Compounds

Q1: Which isotope of hydrogen is radioactive?

A. Protium B. Deuterium C. Tritium D. None of these

Q2: Which of the following is the lightest element?

A. Helium B. Hydrogen C. Oxygen D. Nitrogen

Q3: Which form of hydrogen is most abundant in nature?

A. Protium B. Deuterium C. Tritium D. None of these

Q4: Which compound is used in fuel cells?

A. CH₄ B. H₂O₂ C. H₂ D. CO

Q5: Which compound is formed when hydrogen reacts with nitrogen?

A. Ammonia B. Nitric acid C. Hydrazine D. Urea

Q6: Ortho and para hydrogen differ in their:

A. Chemical properties B. Physical properties C. Nuclear spin D. Electronic configuration

Q7: Which of the following is used as a rocket fuel?

A. H₂ and O₂ B. CH₄ and O₂ C. NH₃ and O₂ D. C₂H₂ and O₂

Q8: Water gas is a mixture of:

A. CO and CO₂ B. CO₂ and H₂ C. CO and H₂ D. H₂ and CH₄

Q9: Which of the following is a hydride of group 15?

A. PH₃ B. CH₄ C. NH₃ D. H₂S

Q10: Which compound is used for the manufacture of heavy water?

A. D₂O B. H₂O₂ C. H₂SO₄ D. NaOH

Q11: Hydrogen resembles alkali metals due to:

A. Its valence shell configuration B. Its atomic number C. Its ionization energy D. Its high electronegativity

Q12: Hydrogen peroxide can act as:

A. An oxidizing agent B. A reducing agent C. Both A and B D. Neither A nor B

Q13: Which method is commonly used for the commercial production of hydrogen?

A. Electrolysis of water B. Steam reforming of methane C. Photolysis D. Electrolysis of HCl

Q14: Which hydride is called saline hydride?

A. NaH B. NH₃ C. PH₃ D. CH₄

Q15: In water molecule, hydrogen forms how many covalent bonds?

A. One B. Two C. Three D. Four

Q16: Which gas is collected over water during electrolysis of water?

A. Hydrogen B. Oxygen C. Nitrogen D. Carbon dioxide

Q17: Hydrides formed by p-block elements are mostly:

A. Molecular hydrides B. Ionic hydrides C. Metallic hydrides D. Complex hydrides

Q18: Hydrogen is placed in group I and also with:

A. Group 2 B. Group 17 C. Group 18 D. Transition elements

Q19: Which of the following is not a property of heavy water?

A. Used as a moderator B. More dense than water C. Solvent for ionic compounds D. Used in fertilizers

Q20: Which compound is formed when hydrogen reacts with fluorine?

A. HF B. HF₂ C. H₂F₂ D. HFO