Advertisements
Advertisements
Question
The valency of aluminium is 3. Write the valency of other radicals present in the following compounds of Aluminium sulphate.
Advertisements
Solution
Aluminium sulphate — Al2(SO4)3
Here valency of aluminium is 3
Another radical = Sulphate (SO42-)
Valency of (SO42-) = 2
APPEARS IN
RELATED QUESTIONS
Write the molecular formula of the following compounds of Ammonia
Find the number and names of elements present in them and calculate their molecular masses.
Write the molecular formula for the oxide and sulphide of following elements of Hydrogen
Write the molecular formulae of Lead (II) oxide – PbO.
Explain the term ‘symbol’.
Write the chemical formula of the following compound in a step-by-step manner –
Sodium bromide
Write the chemical formula of the following compound in a step-by-step manner –
Sodium bisulphate
Write the chemical formula of the following compound in a step-by-step manner –
Sodium zincate
Write the chemical formula of the following compound in a step-by-step manner –
Iron [III] oxide
Complete the statement given below by filling in the blank with the correct word.
The formula of silver [I] chloride is ________.
Match the statements – 1 to 10 below with their correct answers from – A to J.
| Column I | Column II |
| 1. Elements having valency of two. | A: Br1− |
| 2. An anion | B: Divalent |
| 3. A gaseous non-metal | C: Reactants |
| 4. A cation. | D: Ammonium |
| 5. The term used for the substances which take part in the chemical reaction | E: Nitric oxide |
| 6. The meaning of the symbol ‘Δ’ over the arrow in a chemical equation. | F: Nitrogen |
| 7. The chemical name for nitrogen monoxide. | G: Zero |
| 8. A radical containing nitrogen and hydrogen only | H: Nitrous oxide |
| 9. The chemical name for dinitrogen oxide | I: Heat required |
| 10. The valency of noble gases | J: K1+ |
