An unknown, clear liquid is given in a beaker. It is then transferred from the beaker to clean, empty test tube and heated. After a while, it is observed that vapours are rising from the test tube and soon all that's left are a few crystals of salt stuck to the edges. The liquid is ______________.

An unknown, clear liquid is given in a beaker. It is then transferred

1.	An unknown, clear liquid is given in a beaker. It is then transferred from the beaker to clean, empty test tube and heated. After a while, it is observed that vapours are rising from the test tube and soon all that's left are a few crystals of salt stuck to the edges. The liquid is ______________.
Answer» An unknown, clear liquid is given in a beaker. It is then transferred from the beaker to clean, empty test tube and heated. After a while, it is observed that vapours are rising from the test tube and soon all that's left are a few crystals of salt stuck to the edges. The liquid is ______________.