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प्रश्न
Give example.
Composite radicals
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उत्तर
\[\ce{H3O^+, NH4^+, CO_3^2-, SO4^2-}\]
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संबंधित प्रश्न
How many atoms are present in a PO43− ion?
Write the names of `"HgO"` compounds :
Magnesium and oxygen combine in the ratio of 3 : 2 by mass to form magnesium oxide. What mass of oxygen gas would be required to react completely with 24 g of magnesium ?
A liquid compound X of molecular mass 18 u can be obtained from a number of natural sources. All the animals and plants need liquid X for their survival. When an electric current is passed through 200 grams of pure liquid X under suitable conditions, then 178 grams of gas Y and 22 grams of gas Z are produced. Gas Y is produced at the positive electrode whereas gas Z is obtained at the negative electrode. Moreover, gas Y supports combustion whereas gas Z burns itself causing explosions.
- Name (i) liquid X (ii) gas Y, and (iii) gas Z.
- What is the ratio of the mass of element Z to the mass of element Y in the liquid X ?
- Which law of chemical combination is illustrated by this example ?
- Name two sources of liquid X.
- State an important use of Y in our life.
State whether the following statements are true or false :
A chloride ion has negative charge because it has more electrons than a neutral atom.
Name the particle which has 18 electrons, 18 neutrons and 17 protons in it.
Fill in the following blank with suitable word:
A sulphide ion has negative charge because it contains less ....................... than ...................
Give example.
Positive radicals
Give example.
Basic radicals
What do you understand by the following terms?
Basic radical
Write the basic radicals and acidic radicals of the following and then write the chemical formulae of these compound.
Ferrous sulphide
Write the basic radicals and acidic radicals of the following and then write the chemical formulae of these compound.
Chromium sulphate
Write the basic radicals and acidic radicals of the following and then write the chemical formulae of these compound.
Calcium silicate
Write the basic radicals and acidic radicals of the following and then write the chemical formulae of these compound.
Sodium zincate
Name the following radicals and give their valencies:
1. SO4
2. CO3
3. OH4.
4.Cr2O7
Match the radicals in List I with their correct names from List II.
| List I | List II | |
| 1. `"NO"_3^(1-)` | A: Bisulphite | F: Sulphate |
| 2. `"HSO"_4^(1-)` | B: Phosphate | G: Nitrate |
| 3. `"SO"_4^(2-)` | C: Carbonate | H: Phosphite |
| 4. `"PO"_4^(3-)` | D: Nitrite | I: Sulpite |
| 5. `"HCO"_3^(1-)` | E: Bicarbonate | J: Bisulphate |
Name the following:
The radical containing one nitrogen and four hydrogen atoms.
