THIS PPT IS PRESENTED BY MADHUR AGRAWAL

1. CHEMISTRY
POWERPOINT
PRESENTATIO
N

2. REACTIONS

4. Chemical Reaction:-The
process in which a substance
undergoes change to give new
properties is called Chemical
Reaction.
The way to represent a
Chemical Reaction by using a
symbols and formulas of
substances.

6. The reaction in which
two or more than two
reactants to give single
product is called
Combination Reaction.
E.g. C + O2 = CO2
H2 + Cl2 = 2HCl
Combination
Reaction

7. DISPLACEMENT
Reaction
A reaction in which more
reactive element replace
the less reactive element
from its solution is known
as Displacement Reaction.
E.g. Mg + CuSo4 = MgSo4 +
Cu
Fe + CuSo4 = FeSo4 + Cu

8. DOUBLE
DISPLACEMENT
Reaction
A reaction in which ions
interchange their position
is called Double
Displacement Reaction.
E.g.
NaCl + AgNo3 = AgCl +
NaNo3

9. redox
Reaction
A reaction in which
oxidation andreduction
take place togather is
called Redox Reaction.

10. Decomposition
Reaction :- A reaction in
which one reactants take
into two or more product
is called Decomposition
Reaction.

12. Thermal
decomposition
The decomposition
reaction followed by heat
is called Thermal
Decomposition Reaction.
E.g. CaCo3 = CaO + Co2

13. Electrolytic
decomposition
The decomposition
reaction followed by
electricity is called
Electrolytic
Decomposition Reaction.
E.g. 2H2o = 2H2 + O2

14. Photolytic
decomposition
The decomposition
reaction followed by light
is called Photolytic
Decomposition Reaction.

15. BALANCED CHEMICAL
EQUTIONS

16. NaH2PO4 = NaPO3 + H2O
H2CO3 = H2O + CO2
BaSO4 + H2SO4 = Ba(HSO4)2
CaCO3 = CaO + CO2
CaO + H2O = Ca(OH)2

17. H2SO3 = H2O + SO2
SO3 + H2O = H2SO4
Be(OH)2 = BeO + H2O
BaO + H2O = Ba(OH)2
Na2SO3 + S = Na2S2O3

18. SO2 + H2O -> H2SO3
P4 + O2 -> P2O5
Sb + O2 -> Sb4O6
Na2O + H2O -> NaOH
N2O5 + H2O -> HNO3

19. PRESENTED BY :-
MADHUR AGRAWAL
X “B”

20. THANK YOU