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प्रश्न
What are polyatomic ions? Give examples.
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उत्तर
A polyatomic ion is a group of atoms carrying a positive or negative charge. eg.
| Polyatomic ions | Symbol |
| Ammonium | `NH_4^+` |
| Hydroxide | OH- |
| Nitrate | `NO_3^-` |
| Hydrogen carbonate | `HCO_3^-` |
| Sulphate | `SO_4^(2-)` |
| Sulphite | `SO_3^(2-)` |
| Phosphate | `PO_4^(3-)` |
| Carbonate | `CO_3^(2-)` |
संबंधित प्रश्न
Write the names of `"ZnCl"_2 ` compounds :
Write the names of `"H"_2"S"` compounds :
Name the particle which has 18 electrons, 18 neutrons and 17 protons in it.
Fill in the following blank with suitable word:
A potassium ion has positive charge because it contains less............... than.....................
Give example.
Bivalent acidic radicals
What do you understand by the following terms?
Acid radical
Write the basic radicals and acidic radicals of the following and then write the chemical formulae of these compound.
Potassium ferrocyanide
Write the basic radicals and acidic radicals of the following and then write the chemical formulae of these compound.
Sodium zincate
Choose the correct answer from the options given below.
The number of carbon atoms in a hydrogen carbonate radical is
State if the following element or radical is divalent?
Nickel
