Which of the following changes is physical?
...Which of the following changes is physical?
Adding iron filing to aerated water
Adding sodium metal to water
Cooling a solution of Iron (II) sulphate to obtain the hydrated salt
Cooling water to obtain ice
Burning the domestic gas (Utilgas) for cooking
Correct answer is D
No explanation has been provided for this answer.
The nucleus of an atom consists of ...
Which of the following methods is NOT used for the separation of mixtures? ...
In the production of soap, concentrated sodium chloride solution is added to ...
An example of element that can catenate is ...
The simplest branched-chain hydrocarbon is ...
Which of the following is not correct of glucose and fructose?They ...
Which of the following scientists discovered the neutron? ...
Which of the following metals is not extracted by electrolysis ? ...