Advertisements
Advertisements
Question
Give an example of the following chemical change.
A reaction where colour change is noticed
Advertisements
Solution
\[\ce{Fe + \underset{\text{Blue solution}}{CuSO4_(_a_q_)} ->\underset{\text{Green solution}}{FeSO4} + Cu}\]
APPEARS IN
RELATED QUESTIONS
FILL IN THE BLANK
A .............. change is a temporary change.
FILL IN THE BLANK
Positively charged ions are called ........
Name three reducing agents ?
Complete the statement by filling the gap using an appropriate term from the terms given in the bracket.
(slow, coloured, arrow, fast, smell, milky, physical, product, chemical, reactant, covalent, ionic, octet, duplet, exchange, sharing, equality sign)
An ______ is drawn in between the reactants and products while writing the equation for a chemical reaction.
Name affects the acidified K2Cr2O7 paper and also turns lime water dirty milky.
Give a chemical test to distinguish between the following gases.
HCl and Cl2
Write your observation and a balanced equation in the case of the following substances being heated.
Ammonium dichromate.
Write your observation and a balanced equation in the case of the following substances being heated.
Zinc carbonate.
Write the characteristics of chemical change.
______ is the chemical name of limestone.
