Q. 64.0( 2 Votes )
When blue ink is heated, what do you think has got evaporated from the watch glass?
On heating the blue ink which is a mixture of water (volatile) and dye (non-volatile), the solvent water got evaporated from the watch glass leaving the solute, dye. The process involved is evaporation of water.
Rate this question :
What is the need to heat solution?Together with Science
Pure copper sulphate can be obtained form an impure sample by the process of :Lakhmir Singh & Manjit Kaur - Chemistry
How will you separate a mixture of iron filings and sulphur powder without using carbon disulphide?Lakhmir Singh & Manjit Kaur - Chemistry
Describe a method to separate a mixture of camphor and sand.Lakhmir Singh & Manjit Kaur - Chemistry
How will you separate a mixture of iron filings and powdered carbon?Lakhmir Singh & Manjit Kaur - Chemistry
You are provided with a mixture containing sand, iron filings, ammonium chloride and sodium chloride. Describe the procedures you would use to separate these constituents from the mixture?NCERT Science - Exemplar
Which separation techniques will you apply for the separation of the following?
(a) The different pigments from an extract of flower petals
(b) Butter from curd
(c) Oil from water
(d) Tea leaves from tea
(e) Iron pins from sand
(f) Wheat grains from husk
(g) Fine mud particles floating in water.Together with Science
How would you obtain sodium chloride from a mixture of sodium chloride and sulphur without using water?Lakhmir Singh & Manjit Kaur - Chemistry