
______ is a process used quite often in the dairy industry.

Important Questions on Matter: Elements, Compounds and Mixtures




At a refinery, petroleum is separated into several components by a process called fractional distillation using a fractionating column. Which of the following statement is incorrect about the process?
(I) Temperature decreases from the bottom to the top of the column
(II) At each level in the column only one compound is collected
(III) The fraction collecting at the top of the column is less volatile
(IV) The fraction with the highest boiling point condenses first and gets collected near the base of the fractionating column.




Centrifugation can be used for the separation of



The working Principle of washing Machine is?

Which of the following statements is/are incorrect?
I. Centrifugation method can be used to separate butter from cream.
II. Coloured component of blue ink can be separated by evaporation.
III. Chromatography can be used to detect drugs in blood.
IV. Camphor can be separated from salt by crystallisation.





Reason: Milk is a heterogeneous mixture



