Advertisements
Advertisements
प्रश्न
XCl2 is the chloride of a metal X. State the formula of the sulphate and the hydroxide of the metal X.
Advertisements
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
What do the symbols, H2, S and O4 mean in the formula H2SO4 ?
Work out the formula for sulphur dioxide. (Valencies : S = 4 ; O = 2)
Give the formula and valency of:
| Aluminate | ______ | ______ |
Give the formula and valency of:
aluminium ………………. .
Give the formula and valency of:
cupric ………………… .
Correct the following statement:
A molecular formula represents an element.
Give the empirical formula of Glucose C6H12O6 .
Identify the following substance:
Gas B that has an offensive smell as of rotten eggs.
Write the formula of the following compound:
Potassium permanganate
Write the formula of the following compound:
Potassium aluminate
Write the formula of the following compound:
Sodium nitrate
Write the formula of the following compound:
Sodium carbonate
Write the formula of the following compound:
Sodium iodide
Write the formula of the following compound:
Calcium sulphite
Write the formula of the following compound:
Zinc hydroxide
Write the formula of the following compound:
Copper [II] oxide
Write the formula of the following compound:
Copper [II] sulphide
Write the formula of the following compound:
Iron [II] sulphide
There are ______ hydrogen atoms in water molecule.
Write the steps that are followed to write down the chemical formula of a substance.
