WorksheetsValency, Atomicity, Chemical Formulas and Equations Quiz
Total questions: 13
Worksheet time: 8mins
What is the molecular formula of hydrogen?
H
H2
2H
H+
Write the molecular formula of the substance aluminium hydroxide
AlO3
Al2(OH)3
Al2OH3
Molecular formula of the substance calcium bicarbonate
What will be the molecular formula of magnesium nitride
Mg3N2
MgN3
What is the main product formed when sulphur reacts with oxygen?
SO
SO2
SO3
SO4
Write the chemical equation for the reaction zinc with sulphuric acid
Zn + H2SO4 → ZnSO4 + H2
Zn + H2SO4 → ZnO + H2S
What is the product formed when N2 reacts with H2
ammonium
nitrogen hydride
nitrogen dihydride
ammonia
What is the formula of potassium chloride?
(a)
Balance the chemical equation for the reaction of phosphorus with oxygen
4P + 4O2 --> 2P2O5
3P + 5O2 --> 2P2O5
4P + 5O --> 2P2O5
4P + 5O2 --> 2P2O5
A reaction between sodium and water will yield:
NaOH
NaOH & H2
Na2O & H2
none of these
Write the chemical equation for magnesium oxide reacting with nitric acid
What are the products formed when KHCO3 reacts with HCl
Which element shows multiple atomicities?
Helium
