NAVODAYA VIDYALAYA SAMITI, NOIDA
E-CONTENT FOR CLASS X SCIENCE
CHAPTER-1
Chemical reactions and Equations
PREPARED BY
D S SAMKUTTY PGT CHEMISTRY
JNV PATHANAMTHITTA
,Chemical Reaction
It is a process in which one or more substances are formed
as new substances
And it cannot be reversed by physical methods
Chemical reaction involves
• Change in state
• Change in colour
• Change in temperature
• Evolution of gas
,
E-CONTENT FOR CLASS X SCIENCE
CHAPTER-1
Chemical reactions and Equations
PREPARED BY
D S SAMKUTTY PGT CHEMISTRY
JNV PATHANAMTHITTA
,Chemical Reaction
It is a process in which one or more substances are formed
as new substances
And it cannot be reversed by physical methods
Chemical reaction involves
• Change in state
• Change in colour
• Change in temperature
• Evolution of gas
,