Advertisements
Advertisements
प्रश्न
Write the formula of the following compound:
Copper [I] oxide
Advertisements
उत्तर
Copper [I] oxide - Cu2O - `"Cu"^(1+)["O"]^(2-)`
APPEARS IN
संबंधित प्रश्न
Write down the formulae of sodium sulphide.
The radius of an oxygen atom is 0.073 nm. What does the symbol ‘nm’ represent ?
Explain the difference between 2N and N2.
Write down the formulae for the following compounds :
Calcium oxide
If the valency of hydrogen is 1 and that of nitrogen is 3, work out the formula for ammonia.
The formula of carbonate of a metal M is M2CO3.
What will be the formula of its nitride ?
The formula of the nitride of a metal X is XN, state the formula of :
- its sulphate
- its hydroxide.
Name the element in the compound and give the formula of the following compound:
Carbonic acid
Write the formula of the following compound:
Potassium bicarbonate
Write the formula of the following compound:
Potassium aluminate
Write the formula of the following compound:
Potassium iodide
Write the formula of the following compound:
Calcium hydroxide
Write the formula of the following compound:
Magnesium carbonate
Write the formula of the following compound:
Aluminium oxide
Write the formula of the following compound:
Tetra amine copper [II] sulphate
Write the formula of the following compound:
Lead [II] oxide
Write the formula of the following compound:
Lead [II] hydroxide
Write the formula of the following compound:
Silver [II] chloride
Which of the following represents a correct chemical formula? Name it.
BiPO4
Play a game for writing formula.
Example 2: A low-cost model for writing formulae: Take empty blister packs of medicines. Cut them in groups according to the valency of the element, as shown in the figure. Now, you can make formulae by fixing one type of ion into other.
For example:
The formula for sodium sulphate:
2 sodium ions can be fixed on one sulphate ion.
Hence, the formula will be Na2SO4.
Do it yourself:
Now, write the formula of sodium phosphate.
