Question

3
Write down the changes that will be
seen in each instance and explain the
reason behind it.
(a) 50ml water is added to 50ml
solution of copper sulphate.
(b) Two drops of the indicator
phenlphthalein were added to 10ml​

Answer 1

Answer:

When 5o mL water is added to 50 mL solution of copper sulphate, then reversible reaction occurs and the colour change from pale blue to white and then change back to blue when water is added again.