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प्रश्न
Write the basic radicals and acidic radicals of the following and then write the chemical formulae of these compound.
Nickel bisulphate
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उत्तर
Nickel bisulphate
Acidic radical HSO41-
Basic radical Ni2+
Chemical formulae Ni(HSO4)2
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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)
Name the following radicals :
HC03
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.
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 bromide of the element.
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.
Potassium ferrocyanide
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 |
State if the following element or radical is divalent?
Sulphite
State if the following element or radical is divalent?
Dichromate
