The Valency of Aluminium is 3. Write the Valency of Other Radicals Present in the Following Compounds of Aluminium Oxide.

The valency of aluminium is 3. Write the valency of other radicals present in the following compounds of Aluminium oxide.

Aluminium oxide — (Al₂O₃)
Here valency of Al is 3
Other radical present = oxide (O^2-)
Valency of O^2- = 2

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पाठ 5: Language of Chemistry - Exercise [पृष्ठ ६७]

पाठ 5 Language of Chemistry
Exercise | Q 5.2 | पृष्ठ ६७

Write the molecular formulae of Copper oxide.

Write the molecular formula for the oxide and sulphide of following elements of Sodium.

Write the molecular formulae for the following compounds and name the elements present of Sulphuric acid

Write the molecular formulae of Magnesium carbonate.

Copper having electronic configuration 2,8,18,1 exhibits variable valency. Give a reason for the same and name the compound CuCI and CuCl₂.

Explain the term ‘symbol’.

Write the chemical formula of the following compound in a step-by-step manner –

Potassium chloride

Write the chemical formula of the following compound in a step-by-step manner –

Calcium hydroxide

Write the chemical formula of the following compound in a step-by-step manner –

Calcium bicarbonate

Write the chemical formula of the following compound in a step-by-step manner –

Copper [II] oxide