English Medium इयत्ता ९ - CBSE Question Bank Solutions for Science

Pure copper sulphate can be obtained from an impure sample by the process of :

The material which is added to water during purification process at the water works so as to disinfect it is :

The material which is added to water during purification process at the water works so as to disinfect it is :

The technique which is used to separate particles of a solid suspended in a liquid quickly is called :

The technique which is used to separate particles of a solid suspended in a liquid quickly is called :

Naphthalene can be separated from sand :

Naphthalene can be separated from sand :

Which of the following cannot be separated from air by the process of fractional distillation ?

Which of the following cannot be separated from air by the process of fractional distillation ?

The correct increasing order of the boiling points of liquid oxygen, liquid argon and liquid nitrogen present in liquid air is :

The correct increasing order of the boiling points of liquid oxygen, liquid argon and liquid nitrogen present in liquid air is :

The boiling point of liquid argon is :

The boiling point of liquid argon is :

You are given a mixture of iodine in alcohol called tincture iodine. Which method will you use to recover both, iodine as well as alcohol, from this mixture ?

You are given a mixture of iodine in alcohol called tincture iodine. Which method will you use to recover both, iodine as well as alcohol, from this mixture ?

The best way to recover sugar from an aqueous sugar solution is :

The best way to recover sugar from an aqueous sugar solution is :

One of the following does not undergo sublimation. This one is :

One of the following does not undergo sublimation. This one is :

Which one of the following scrap metal cannot be separated by magnetic separation ?