Advertisements
Advertisements
प्रश्न
State of the following formula of a compound is incorrect. Incorrectly write the correct formula.
(NH4)3SO4
Advertisements
उत्तर
(NH4)3SO4
Correct formula – (NH4)2SO4
APPEARS IN
संबंधित प्रश्न
Write down the formulae of sodium oxide.
What do the following abbreviations stand for ?
- O
- 2O
- O2
- 3O2
If the valency of hydrogen is 1 and that of nitrogen is 3, work out the formula for ammonia.
Define ‘formula unit’ of an ionic compound. What is the formula unit of (i) sodium chloride, and
(ii) magnesium chloride ?
Name the element in the compound and give the formula of the following compound:
Acetic acid
Name the element in the compound and give the formula of the following compound:
Ethane
Name the element in the compound and give the formula of the following compound:
Ethanol
Write the formula of the following compound:
Potassium dichromate
Write the formula of the following compound:
Potassium bisulphite
Write the formula of the following compound:
Sodium bisulphate
Write the formula of the following compound:
Magnesium sulphate
Write the formula of the following compound:
Silver [I] chloride
State of the following formula of a compound is incorrect. Incorrectly write the correct formula.
KCr2O7
State of the following formula of a compound is incorrect. Incorrectly write the correct formula.
Ca2(PO4)3
State of the following formula of a compound is incorrect. Incorrectly write the correct formula.
NaClO
Write the chemical formula for the following elements.
- Hydrogen
- Nitrogen
- Ozone
- Sulphur
Which of the following represents a correct chemical formula? Name it.
BiPO4
Play a game for writing formula.
Example 1: Make placards with symbols and valencies of the elements separately. Each student should hold two placards, one with the symbol in the right hand and the other with the valency in the left hand. Keeping the symbols in place, students should criss-cross their valencies to form the formula of a compound.
