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प्रश्न
Write the basic radicals and acidic radicals of the following and then write the chemical formulae of these compound.
Stannic oxide
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उत्तर
Stannic oxide
Acidic radical O2-
Basic radical Sn2+
Chemical formulae SnO2
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संबंधित प्रश्न
Calculate the number of aluminium ions present in 0.051 g of aluminium oxide.
(Hint: The mass of an ion is the same as that of an atom of the same element. Atomic mass of Al = 27 u)
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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 :
A particle P has 18 electrons, 20 neutrons and 19 protons. This particle must be :
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
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2. CO3
3. OH4.
4.Cr2O7
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Bisulphite
