Advertisements
Advertisements
प्रश्न
Write the formula of the following compound:
Sodium nitrite
Advertisements
उत्तर
Sodium nitrite - NaNO2 - `["NO"_2]^(1-)`
APPEARS IN
संबंधित प्रश्न
Write down the formulae of sodium sulphide.
Write the chemical formula of the Magnesium chloride.
What is meant by the symbol of an element ? Explain with examples.
Explain the difference between 2N and N2.
The formula of a compound is X3Y. The valencies of elements X and Y will be respectively :
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 ………………. .
Correct the following statement:
Formula of iron (lll) oxide is FeO.
Give the empirical formula of Glucose C6H12O6 .
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:
Ethane
Write the formula of the following compound:
Potassium hydroxide
Write the formula of the following compound:
Sodium chloride
Write the formula of the following compound:
Sodium sulphate
Write the formula of the following compound:
Magnesium bicarbonate
Write the formula of the following compound:
Zinc oxide
Write the formula of the following compound:
Copper [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.
