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प्रश्न
Write symbols of the following elements and the radicals obtained from them and indicate the charge on the radicals.
Mercury, potassium, nitrogen, copper, sulphur, carbon, chlorine, oxygen
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उत्तर
|
sr. no. |
Element |
Symbols | Free radicals | charge on the radicals |
| i. | Mercury | Hg | Hg+ | +1 |
| Hg2+ | +2 | |||
| ii. | Potassium | K | K+ | +1 |
| iii. | Nitrogen | N | N3- | -3 |
| iv. | Copper | Cu | Cu+ | +1 |
| Cu2+ | +2 | |||
| v. | Sulphur | S | S2- | -2 |
| vi. | Carbon | C | C+ | +1 |
|
vii. |
Chlorine |
Cl | Cl- | -1 |
| viii. | Oxygen | O | O2- | -2 |
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संबंधित प्रश्न
Write the symbols and valencies of the following radicals:
- Magnesium ion
- Ammonium
- Carbonate
- Nitrate
- Oxide
- Bisulphate
- Aluminium ion
Name the following radicals :
OH
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Write the names of `"HgO"` compounds :
Define ‘formula mass’ of a compound.
Fill in the following blank with suitable word:
A potassium ion has positive charge because it contains less............... than.....................
An element X has a valency of 2. Write the simplest formula for oxide of the element.
A particle X has 17 protons, 18 neutrons and 18 electrons. This particle is most likely to be :
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 compounds.
Barium sulphate
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.
Sodium thiosulphate
Write the basic radicals and acidic radicals of the following and then write the chemical formulae of these compound.
Nickel bisulphate
Complete the following table.
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Acid Radicals `→` |
Chloride |
Nitrate |
Sulphate |
Carbonate |
Hydroxide |
Phosphate |
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Basic Radicals `↓` |
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Magnesium |
MgCl2 |
Mg(NO3)2 |
MgSO4 |
MgCO3 |
Mg(OH)2 |
Mg3(PO4)2 |
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Sodium |
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Zinc |
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Silver |
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Ammonium |
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Calcium |
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Iron (II) |
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Potassium |
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Name the following radicals and give their valencies:
1. SO4
2. CO3
3. OH4.
4.Cr2O7
State if the following element or radical is divalent?
Ammonium
State if the following element or radical is divalent?
Carbide
