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प्रश्न
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उत्तर
Potassium bisulphate - KHSO4 - `"K"^1["HSO"_4]^(1-)`
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संबंधित प्रश्न
Write down the formulae for the following compounds :
Magnesium hydroxide
Name the elements water is made of. What are the valencies of these elements ? Work out the chemical
formula for water.
Work out the formula for sulphur dioxide. (Valencies : S = 4 ; O = 2)
Name the following compounds. Also write the symbols/formulae of the ions present in them :
- CuSO4
- (NH4)2SO4
- Na2O
- Na2CO3
- CaCl2
(a) Write the symbols/formulae of two simple ions and two compound ions (or polyatomic ions).
The formula of carbonate of a metal M is M2CO3.
What will be the formula of its nitride ?
Give the formula and valency of:
chromate ………….…….. .
Write chemical formula of the sulphate of Aluminium, Ammonium and Zinc.
Correct the following statement:
A molecular formula represents an element.
Correct the following statement:
Molecular formula of water is H2O2
What is a chemical formula? What is the significance of a formula?give an example to illustrate?
Name the element in the compound and give the formula of the following compound:
Blue vitriol
Write the formula of the following compound:
Potassium aluminate
Write the formula of the following compound:
Magnesium oxide
Write the formula of the following compound:
Iron [III] oxide
State of the following formula of a compound is incorrect. Incorrectly write the correct formula.
NaO
What do you understand by chemical formula of a compound? What is its significance?
Write the molecular formulae for the following compounds
Mercury (II) chloride
Write the molecular formulae of all the compounds that can be formed by the combination of the following ions
Cu2+, Na+, Fe3+, C1– , `"SO"_4^-2`, `"PO"_4^3-`
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.
