Advertisements
Advertisements
प्रश्न
The formula of the nitride of a metal X is XN, state the formula of :
- its sulphate
- its hydroxide.
Advertisements
उत्तर
The formula of nitride of metal X is XN
Since valency of nitrogen is 3-
∴ Valency of X is 3+
(i)
Sulphte of metal
`"X"^{3+}["SO"_4]^{2-}` =
⇒`"X"_2["SO"_4]_3`
(ii)
The hydroxide of metal X
`"X"^(3+) ["OH"]^-1` =
= `"X"_1["OH"]_3 = "X[OH]"_3`
APPEARS IN
संबंधित प्रश्न
What is meant by the term chemical formula?
State the chemical symbols for the following elements :
Sodium, Potassium, Iron, Copper, Mercury, Silver.
What do the following abbreviations stand for ?
- O
- 2O
- O2
- 3O2
Work out the formula for sulphur dioxide. (Valencies : S = 4 ; O = 2)
An element X of valency 3 combines with another element Y of valency 2. What will be the formula of the compound formed ?
An element Y has a valency of 4. Write the formula for its :
- chloride
- oxide
- sulphate
- carbonate
- nitrate
The formula of carbonate of a metal M is M2CO3.
What will be the formula of its nitride ?
Give the formula and valency of:
aluminium ………………. .
Identify the following substance:
Gas B that has an offensive smell as of rotten eggs.
Name the element in the compound and give the formula of the following compound:
Phosphoric acid
Name the element in the compound and give the formula of the following compound:
Blue vitriol
Write the formula of the following compound:
Potassium iodide
Write the formula of the following compound:
Sodium bicarbonate
Write the formula of the following compound:
Aluminium oxide
Write the formula of the following compound:
Lead [II] sulphate
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
Aluminium (III) nitrate
Write the molecular formulae for the following compounds
Calcium (II) phosphate
