Question

Match the following.
1)causes scale - calcium oxide 2)basic oxide - soap 3)test for hard ness of water- sulphur dioxide
4)acidic oxide- neutral oxide Does not react with water

Answer 1

Answer:

1) ----------- neutral oxide does not react with water

2) ----------- soap ( becz it ph is 9-10 )

3) ---------- calcium oxide

4) ---------- Sulphur dioxide