Adaptive Practice
Hydrogen
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Easy
Which of the following is the most abundant element in the universe?
Easy
What is the molecular formula of hydrogen gas?
Medium
Which method is commonly used in the laboratory to prepare hydrogen gas?
Medium
Hydrogen forms a hydride with which of the following elements?
Hard
What is the oxidation state of hydrogen in metal hydrides?
Hard
Which isotope of hydrogen is used as a fuel in nuclear fusion reactions?
Hard
What volume of hydrogen gas at STP is produced when 4 g of zinc reacts with excess dilute sulfuric acid? (Atomic mass of Zn = 65)
Medium
Which property of hydrogen explains its use in the Haber process for ammonia synthesis?
Easy
In the reaction 2H2 + O2 → 2H2O, what is the volume ratio of hydrogen to oxygen gases at constant temperature and pressure?
Medium
Which of the following statements about hydrogen bonding is correct?