Advertisements
Advertisements
प्रश्न
Write the formula of the following compound:
Sodium zincate
Advertisements
उत्तर
Sodium zincate - Na2ZnO2 - `"Na"^(1+)["ZnO"_2]^(2-)`
APPEARS IN
संबंधित प्रश्न
The radius of an oxygen atom is 0.073 nm. What does the symbol ‘nm’ represent ?
State the chemical symbols for the following elements :
Sodium, Potassium, Iron, Copper, Mercury, Silver.
Write down the formulae for the following compounds :
Calcium oxide
Write down the formulae for the following compounds :
Magnesium hydroxide
If the valency of hydrogen is 1 and that of nitrogen is 3, work out the formula for ammonia.
Work out the formula for sulphur dioxide. (Valencies : S = 4 ; O = 2)
Define ‘formula unit’ of an ionic compound. What is the formula unit of (i) sodium chloride, and
(ii) magnesium chloride ?
Write the formula of the following compound:
Potassium hydroxide
Write the formula of the following compound:
Calcium carbonate
Write the formula of the following compound:
Calcium sulphate
Write the formula of the following compound:
Aluminium nitrate
Write the formula of the following compound:
Iron [III] chloride
Write the formula of the following compound:
Iron [III] oxide
Write the formula of the following compound:
Lead [II] nitrate
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-`
Give the chemical formulae for the following compounds and compute the ratio by mass of the combining elements in each one of them. (You may use appendix-III).
- Ammonia
- Carbon monoxide
- (Hydrogen chloride
- Aluminium fluoride
- Magnesium sulphide
What is a chemical formula?
Derive the chemical formula for calcium chloride.
