Advertisements
Advertisements
प्रश्न
Write the formula of the following compound:
Sodium aluminate
Advertisements
उत्तर
Sodium aluminate - NaAlO2 - `"AlO"_2^(1-)`
APPEARS IN
संबंधित प्रश्न
State the chemical symbols for the following elements :
Sodium, Potassium, Iron, Copper, Mercury, Silver.
The atomicities of ozone, sulphur, phosphorus and argon are respectively :
Work out the formula for sulphur dioxide. (Valencies : S = 4 ; O = 2)
An element A forms an oxide A2O5.
What will be the formula of chloride of A ?
Complete the following statement by selecting the correct option :
The correct formula of aluminium oxide is
Name the element in the compound and give the formula of the following compound:
Green vitriol
Name the element in the compound and give the formula of the following compound:
Glauber’s salt
Write the formula of the following compound:
Potassium aluminate
Write the formula of the following compound:
Calcium carbonate
Write the formula of the following compound:
Magnesium carbonate
Write the formula of the following compound:
Zinc oxide
Write the formula of the following compound:
Aluminium chloride
Write the formula of the following compound:
Iron [III] oxide
Write the formula of the following compound:
Lead [II] nitrate
Write the formula of the following compound:
Silver [I] chloride
Find the valency of the element which is underlined in the following formula.
- NaCl
- CO2
- Al (PO4)
- Ba (NO3)2
- CaCl2
Write the molecular formulae for the following compounds
Iron (III) sulphide
What is a chemical formula?
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.
