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प्रश्न
Write the formula of the following compound:
Sodium plumbite
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उत्तर
Sodium plumbite - Na2PbO2 - `"Na"^(1+)["PbO"_2]^(2-)`
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संबंधित प्रश्न
Write down the formulae of sodium oxide.
Write the chemical formula of the Calcium carbonate.
Name the following compounds. Also write the symbols/formulae of the ions present in them :
- CuSO4
- (NH4)2SO4
- Na2O
- Na2CO3
- CaCl2
Correct the following statement:
Formula of iron (lll) oxide is FeO.
Give the empirical formula of Acetylene C2H2
The formula of the nitride of a metal X is XN, state the formula of :
- its sulphate
- its hydroxide.
Write the formula of the following compound:
Calcium hydroxide
Write the formula of the following compound:
Magnesium chloride
Write the formula of the following compound:
Magnesium hydroxide
Write the formula of the following compound:
Magnesium oxide
Write the formula of the following compound:
Aluminium nitrate
Write the formula of the following compound:
Aluminium hydroxide
Write the formula of the following compound:
Copper [I] sulphide
Write the formula of the following compound:
Iron [III] sulphate
Write the formula of the following compound:
Lead [II] hydroxide
Write the molecular formulae for the following compounds
Copper (II) bromide
Write the molecular formulae of all the compounds that can be formed by the combination of the following ions
Cu2+, Na+, Fe3+, C1– , `"SO"_4^-2`, `"PO"_4^3-`
Complete the following crossword puzzle (Fig. 3.1) by using the name of the chemical elements. Use the data given in Table.
| Across | Down | ||
| 2 | The element used by Rutherford during his α–scattering experiment | 1 | A white lustrous metal used for making ornaments and which tends to get tarnished black in the presence of moist air |
| 3 | An element which forms rust on exposure to moist air | 4 | Both brass and bronze are alloys of the element |
| 5 | A very reactive non–metal stored under water | 6 | The metal which exists in the liquid state at room temperature |
| 6 | Zinc metal when treated with dilute hydrochloric acid produces a gas of this element which when tested with burning splinter produces a pop sound. | 8 | An element with symbol Pb |
