Advertisements
Advertisements
प्रश्न
XCl2 is the chloride of a metal X. State the formula of the sulphate and the hydroxide of the metal X.
उत्तर
Chloride of metal X is 
By interchanging subscript and writing as superscript
The valency of metal X is 2
Valency of sulphate SO4 is 2- and of hydroxide OH is 1-
∴ The formula of X2+ `"SO"_4^(2-)`
Sulphate of X = 
⇒ XSO4
The formula of hydroxide of a metal
X2+ OH1- ⇒ 
⇒ `"X"_1 ("OH")_2`
dropping 1 ⇒ X[OH]2
APPEARS IN
संबंधित प्रश्न
Write down the formulae of sodium oxide.
What is meant by a chemical formula ? Write the formulae of one element and one compound.
Name the elements water is made of. What are the valencies of these elements ? Work out the chemical
formula for water.
An element A forms an oxide A2O5.
What will be the formula of chloride of A ?
Give the formula and valency of:
| Aluminate | ______ | ______ |
Complete the following statement by selecting the correct option :
The correct formula of aluminium oxide is
Correct the following statement:
Molecular formula of water is H2O2
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:
Glauber’s salt
Write the formula of the following compound:
Potassium permanganate
Write the formula of the following compound:
Potassium bicarbonate
Write the formula of the following compound:
Potassium bisulphite
Write the formula of the following compound:
Sodium permanganate
Write the formula of the following compound:
Magnesium carbonate
Write the formula of the following compound:
Iron [III] oxide
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.
Write the molecular formulae for the following compounds
Calcium (II) phosphate
There are ______ hydrogen atoms in water molecule.
