Question 5 — Write the chemical formulae for - Questions at the end of the chapter - Chapter 9 - Atomic Foundations of Matter (Exploration)

Last updated at July 3, 2026 by

Question 5
Write the chemical formulae for the following compounds. (i) Aluminium nitrate (ii) Calcium oxide (iii) Ferric oxide
View Answer Hide Answer
  • (i) Al³⁺ + NO₃⁻ → Al(NO₃)₃ .
  • (ii) Ca²⁺ + O²⁻ → CaO .
  • (iii) Fe³⁺ + O²⁻ → Fe₂O₃ .
Writing the Formulae Aluminium nitrate is Al(NO3)3 Calcium oxide is CaO Ferric oxide is Fe2O3
Back to: 9.5.2 Writing chemical formulae of ionic compounds
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.