Question 4 — Choose the correct statement(s) and - Questions at the end of the chapter - Chapter 9 - Atomic Foundations of Matter (Exploration)

Last updated at July 3, 2026 by

Question 4
Choose the correct statement(s) and correct the false statement(s). (i) Elements are made up of molecules and compounds are made up of atoms. (ii) The molecule of a compound is always made up of two or more atoms of the same kind. (iii) One molecule of nitrogen gas contains three nitrogen atoms. (iv) Water is made of two hydrogen atoms, covalently bonded with one oxygen atom.
View Answer Hide Answer
  • (i) False — elements are made of atoms; compounds are made of atoms of different elements (often as molecules).
  • (ii) False — a molecule of a compound is made of atoms of different kinds.
  • (iii) False — a nitrogen molecule (N₂) contains two nitrogen atoms, not three.
  • (iv) True — water has two hydrogen atoms covalently bonded to one oxygen atom.
Correcting the Statements Compounds are atoms of different elements N2 has two nitrogen atoms Water is two H and one O
Back to: 9.4 How Atoms Combine?
Remove Ads Share on WhatsApp
CA Maninder Singh's photo - Co-founder, Teachoo

Made by

CA Maninder Singh

CA Maninder Singh is a Chartered Accountant with 16+ years of practical experience and 20+ years of teaching experience. At Teachoo, he simplifies Accounts, Tax and GST with step-by-step examples so students can apply concepts confidently in exams and real life.

For an uninterrupted learning experience, students can use Teachoo Black to remove ads and focus better.