MCQs on Hydrogen, Alkali and Alkaline Earth Metals

By: Prof. Dr. Fazal Rehman | Last updated: May 23, 2025

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1. Dolomite is a mineral whose formula is



2. Which of the mentioned gas is lightest?



3. According to recent views which is the accurate representation of hydrated proton in aqueous solutions?



4. Which isotope of hydrogen is/are radioactive in nature?



5. What is the composition of Witherite?



6. Dolomite is a carbonate of which of the following?



7. Which metal can produce dihydrogen gas by reaction with dil. H₂SO₄?



8. Which type of elements form ionic hydrides?



9. Which is the process of adsorption of hydrogen on palladium?



10. Newly born hydrogen is known as ______.



11. How three isotopes of hydrogen differ from one another?



12. Aluminum reacts with boiling water to liberate dihydrogen gas along with the formation of __________ .



13. Which of the mentioned is an allotrope of hydrogen?



14. When steam is passed over red hot coke, which products will form?



15. What is the accurate order of reactivity among atomic hydrogen (1), dihydrogen (2), and nascent hydrogen (3)?
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