Hydrogen peroxide has formula………
a) H2O2
b) H2O
c) H3O
d) None of these
Calcium Carbonate is also known as…….
a) baking Soda
b) methane
c) bleaching Powder
d) lime Stone
The common name of Methane is……….
a) coal Gas
b) Marsh gas
c) light Gas
d) heavy Gas
…can be decomposed into simpler substances
a) Solution
b) Mixture
c) Element
d) Compound
Chemical formula of Table Salt is………….
a) NaCl
b) CaO
c) NaOH
d) MgO
The chemical formula of Calcium hypochlorite is……….
a) CaHCo3
b) CaOCl2
c) NaCl
d)NaOH
