7:41
Separate the given mixture of iron filings & sand by physical method|9th Class Practical#1 in Urdu
Science Tree
15:47
Determine the melting point of the given compound (Naphthalene)|9th Class Practical#2 Urdu Medium
8:38
Separate the given mixture of sand and naphthalene by sublimation 9th Class Practicals|Science Tree