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Q. 224.8( 4 Votes )

Write the chemica

Class 9th All In One - Science 3. Atoms and Molecules

Answer :

(i) Cr³⁺ and SO₄^2-

By applying criss-cross method:

Chemical formula: Cr₂(SO₄)₃

Name of the compound: Chromium sulphate

(ii) Pb²⁺ and NO₃^–

By applying criss-cross method:

Chemical formula: Pb(NO₃)

Name of the compound: Lead nitrate

(iii) Mg²⁺ and CO₃^2–

By applying criss-cross method:

Chemical formula: MgCO₃

Name of the compound: Magnesium carbonate

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