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Byju's Answer
Standard XIII
Chemistry
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
Q.
The valency of phosphate ion is ____.
Q.
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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