Advertisements
Advertisements
Question
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
Solution
Formula of the listed compounds are as follows:
Sodium phosphate – Na3PO4
Ammonium sulphate – (NH4)2SO4
Calcium hydroxide – Ca(OH)2
Lead bromide – PbBr2
APPEARS IN
RELATED QUESTIONS
How many atoms are present in a PO43− ion?
Write the names of `"H"_2"S"` compounds :
Explain the formation of (i) sodium ion, and (ii) chloride ion, from their respective atoms giving the number of protons and number of electrons in each one of them. What is the reason for positive charge on a sodium ion and a negative charge on a chloride ion ?
Give example.
Basic radicals
Give example.
Composite radicals
Write the basic radicals and acidic radicals of the following and then write the chemical formulae of these compound.
Stannic phosphate
Choose the correct answer from the options given below.
The number of carbon atoms in a hydrogen carbonate radical is
Differentiate between the following with suitable examples- A basic radical and an acid radical
Name the following:
The radical containing one nitrogen and four hydrogen atoms.
State if the following element or radical is divalent?
Chromium
