Advertisements
Advertisements
प्रश्न
Name the element in the compound and give the formula of the following compound:
Ethane
उत्तर
| Element | Element in compound | Formula |
| Ethane | Carbon, hydrogen | C2H6 |
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.
The atomicities of ozone, sulphur, phosphorus and argon are respectively :
Correct the following statement:
A molecular formula represents an element.
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:
Glauber’s salt
Name the element in the compound and give the formula of the following compound:
Ethanol
Write the formula of the following compound:
Sodium zincate
Write the formula of the following compound:
Calcium bicarbonate
Write the formula of the following compound:
Aluminium sulphate
Write the formula of the following compound:
Copper [II] oxide
Write the formula of the following compound:
Tetra amine copper [II] sulphate
Write the formula of the following compound:
Iron [III] sulphide
Write the formula of the following compound:
Lead [II] hydroxide
Write the molecular formulae for the following compounds
Mercury (II) chloride
Write the molecular formulae for the following compounds
Magnesium (II) acetate
Give the chemical formulae for the following compounds and compute the ratio by mass of the combining elements in each one of them. (You may use appendix-III).
- Ammonia
- Carbon monoxide
- (Hydrogen chloride
- Aluminium fluoride
- Magnesium sulphide
There are ______ hydrogen atoms in water molecule.
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.
