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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 |
APPEARS IN
संबंधित प्रश्न
Name the following radicals :
SO42
Write the names of `"HgO"` compounds :
Write the names of `"H"_2"S"` compounds :
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 potassium ion has positive charge because it contains less............... than.....................
Fill in the following blank with suitable word:
A sulphide ion has negative charge because it contains less ....................... than ...................
An element X has a valency of 2. Write the simplest formula for bromide of the element.
An element X has a valency of 2. Write the simplest formula for oxide of the element.
What is the difference between a cation and an anion ? Explain with examples.
Explain the formation of (i) sodium ion, and (ii) chloride ion, from their respective atoms giving the number of protons and number of electrons in each one of them. What is the reason for positive charge on a sodium ion and a negative charge on a chloride ion ?
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
Fill in the blank:
Sodium chloride has two radicals. Sodium is a _____ radical while chloride is _____ radical.
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:
The radical containing one nitrogen and four hydrogen atoms.
State if the following element or radical is divalent?
Nitride
