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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:
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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.
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Give example.
Bivalent acidic radicals
What do you understand by the following terms?
Acid radical
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Name the following radicals and give their valencies:
1. SO4
2. CO3
3. OH4.
4.Cr2O7
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Name the following:
The radical containing one nitrogen and four hydrogen atoms.
State if the following element or radical is divalent?
Ammonium
State if the following element or radical is divalent?
Sulphite
State if the following element or radical is divalent?
Bisulphite
Match the names of ions and radicals from 1 to 10 with their correct answer from A to Q.
| Column A | Column B |
| 1. Hypochlorite | A: Hg2+ |
| 2. Permanganate | B: \[\ce{MnO_4^1-}\] |
| 3. Plumbous | C: Sn4+ |
| 4. Zincate | D: Pb2+ |
| 5. Nitride | E: Sn2+ |
| 6. Mercuric | F: Pb4+ |
| 7. Stannic | G: \[\ce{SO_3^2-}\] |
| 8. Nitrite | H: N3- |
| 9. Sulphite | I: \[\ce{NO_2^1-}\] |
| 10. Dichromate | J: \[\ce{MnO_4^2-}\] |
| K: Hg1+ | |
| L: \[\ce{SO_4^2-}\] | |
| M: CIO1- | |
| N: \[\ce{ZnO_2^2-}\] | |
| O: \[\ce{Cr_2O_7^2-}\] | |
| P: \[\ce{CrO_4^2-}\] | |
| Q: \[\ce{ClO_3^1-}\] |
