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प्रश्न
Write the formula of the following compound:
Zinc oxide
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उत्तर
Zinc oxide - ZnO - `"Zn"^(2+)["O"]^(2-)`
संबंधित प्रश्न
What is meant by the symbol of an element ? Explain with examples.
The element having atomicity 'four' is most likely to be :
If the valency of hydrogen is 1 and that of nitrogen is 3, work out the formula for ammonia.
(a) Write the symbols/formulae of two simple ions and two compound ions (or polyatomic ions).
An element Y has a valency of 4. Write the formula for its :
- chloride
- oxide
- sulphate
- carbonate
- nitrate
Define ‘formula unit’ of an ionic compound. What is the formula unit of (i) sodium chloride, and
(ii) magnesium chloride ?
The formula of carbonate of a metal M is M2CO3.
What will be the formula of its iodide ?
The formula of carbonate of a metal M is M2CO3.
What will be the formula of its nitride ?
Give the formula and valency of:
chromate ………….…….. .
Correct the following statement:
A molecular formula represents an element.
Correct the following statement:
Formula of iron (lll) oxide is FeO.
Write the formula of the following compound:
Sodium carbonate
Write the formula of the following compound:
Calcium nitrate
Write the formula of the following compound:
Magnesium hydroxide
Write the formula of the following compound:
Aluminium chloride
Write the formula of the following compound:
Aluminium hydroxide
Write the formula of the following compound:
Aluminium oxide
Write the formula of the following compound:
Iron [III] hydroxide
State of the following formula of a compound is incorrect. Incorrectly write the correct formula.
BaCl2
Write the molecular formulae for the following compounds
Calcium (II) phosphate
