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Amines as Bases

Write down th...

Question

Write down the valency of the following ions.

Ion Valency

Phosphate

Calcium

Sulphide

Nitride

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Solution

1. Phosphate- 3
2. Calcium- 2
3. Sulphide- 2
4. Nitride- 3

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Similar questions

Q. (a) What is an ion ? How is an ion formed ? Explain with the help of two examples of different ions.
(b) The valencies (or charges) of some of the ions are given below :

Ion	Valency (Charge)	Ion	Valency (Charge)
Sodium ion	1+	Bromide ion	1–
Ammonium ion	1+	Hydroxide ion	1–
Calcium ion	2+	Sulphate ion	2–
Lead ion	2+	Phosphate ion	3–

Using this information, write down the formulae of the following compounds :
(i) Sodium phosphate
(ii) Ammonium sulphate
(iii) Calcium hydroxide
(iv) Lead bromide

Q. (a) What is the difference between a cation and an anion ? Explain with examples.
(b) The valencies (or charges) of some of the ions are given below :

Ion	Valency (Charge)	Ion	Valency (Charge)
Sodium ion	1+	Nitrate ion	1–
Copper ion	2+	Sulphide ion	2–

Using this information, write down the formulae of :
(i) Sodium sulphide
(ii) Copper nitrate

The valency of phosphate ion is ____.

What is the valency of oxide ion and sulphide ion?

Q. Write the valencies of the following ions:
(a) Nitride ion
(b) Ammonium ion
(c) Hydrogen carbonate ion
[3 Marks]

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Amines as Bases

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