Chemical Formula - II — task. Chemistry CBSE Live product, Class 9 (2026-27).

Pick out the correct chemical formulae for the following compounds.

Answer variants:

\(Al(NO_{3})\)

\(Al(NO_{3})_{3}\)

\(CaO\)

\(Ca_{2}O_{3}\)

1. Aluminium nitrate -

2. Calcium oxide -

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