Advertisements
Advertisements
Question
A chemical reaction is often accompanied by external indications or characteristics.
Advertisements
Solution
A chemical reaction is accompanied by a change in colour of reactants and products
APPEARS IN
RELATED QUESTIONS
FILL IN THE BLANK
The new substances formed during a chemical reaction are called the ..................
TRUE \ FALSE
Weak electrolytes dissociate partially in their aqueous or fused state.
TRUE \ FALSE
Electrolytic refining is a method in which a thin coating of a metal is done over another metal.
Fill in the blank.
Melting of ice is a _______ change.
What do you observe? When
Barium chloride is added to sodium sulphate solution
Complete the table given below.
| Heat on copper carbonate | Test for gas evolved |
Complete the table given below.
| Heat on sodium chloride | Colour imparted to flame during flame test |
Burning of paper is a ______ change.
Rusting of Iron: undesirable change:: Dead plants turn into manure: ______.
Silver articles turning black: ______:: Boiling of H2O: physical change ______.
