Advertisements
Advertisements
प्रश्न
Give the formula and valency of:
chromate ………….…….. .
Advertisements
उत्तर
chromate
Formula CrO4
Valency -2
APPEARS IN
संबंधित प्रश्न
The atomicities of ozone, sulphur, phosphorus and argon are respectively :
Work out the formula for sulphur dioxide. (Valencies : S = 4 ; O = 2)
An element Y has a valency of 4. Write the formula for its :
- chloride
- oxide
- sulphate
- carbonate
- nitrate
Name the element in the compound and give the formula of the following compound:
Phosphoric acid
Write the formula of the following compound:
Potassium zincate
Write the formula of the following compound:
Potassium sulphate
Write the formula of the following compound:
Potassium hydroxide
Write the formula of the following compound:
Calcium bicarbonate
Write the formula of the following compound:
Zinc carbonate
Write the formula of the following compound:
Aluminium oxide
Write the formula of the following compound:
Copper [II] chloride
Write the formula of the following compound:
Copper [II] oxide
Write the formula of the following compound:
Tetra amine copper [II] sulphate
Write the formula of the following compound:
Iron [II] chloride
Define the term Relative molecular mass. State why indirect methods are utilised to determine the absolute mass of an atom. Explain in brief the indirect method used.
State of the following formula of a compound is incorrect. Incorrectly write the correct formula.
NaZnO2
Which of the following represents a correct chemical formula? Name it.
BiPO4
Write the molecular formulae for the following compounds
Calcium (II) phosphate
What is a chemical formula?
Write the steps that are followed to write down the chemical formula of a substance.
