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प्रश्न
Write the basic radicals and acidic radicals of the following and then write the chemical formulae of these compound.
Sodium zincate
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उत्तर
Sodium zincate
Acidic radical ZnO2-
Basic radical Na1+
Chemical formulae Na2ZnO2
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संबंधित प्रश्न
The valency of calcium is 2. Write the valencies of other radical in the following :
- CaO
- Ca(OH)2
- CaC03
- CaCl2
What is the name of a particle which contains 10 electrons, 11 protons and 12 neutrons ?
Fill in the following blank with suitable word:
The particle which is formed by the loss of electrons by an atom is called..............
What is an ion ? How is an ion formed ? Explain with the help of two examples of different ions.
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
Give example.
Basic radicals
What do you understand by the following terms?
Acid radical
Select the correct answer to the statement given below:
An elementary particle of matter – of a group of atoms of different elements behaving as a single unit with charge on the group.
State if the following element or radical is divalent?
Carbide
State if the following element or radical is divalent?
Chromium
