Chemistry ยท Science General

Separation Techniques

842 Questions

Separation techniques involve physical methods to isolate mixtures, including distillation, filtration, and crystallization. Competitive exams frequently test these foundational concepts. Review the exact processes to enhance problem solving speed.

Distillation and evaporationCrystallization processFiltration methodsSeparating dissolved solidsChromatography and mass techniques

Separation Techniques Questions

Multiple choice

What do you mean by petroleum refining?

  1. The process of separating various fractions of petroleum

  2. The process of mixing various fractions of petroleum

  3. The process of burning various fractions of petroleum

  4. The process of purifying individual fractions of petroleum using certain additives
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The process of separating various fractions of petroleum.

Multiple choice chemistry separation of substances substances and mixtures formation of mixtures and types of mixtures based on states types of mixtures

The separation of mixture depends on :

  1. boiling point

  2. solubility

  3. magnetic nature

  4. all of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Separation of mixture basically depends on the physical and chemical properties of the components. These factors are state, melting and boiling point, solubility, magnetic nature etc.

Multiple choice

How could we separate a mixture of coloured dyes?

  1. Distillation

  2. Chromatography

  3. Evaporation

  4. Filtration
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Chromatography is a laboratory technique used to separate mixtures of substances, such as dyes, based on their different solubilities and rates of movement through a stationary phase.

Multiple choice chemistry chemistry in everyday life common salt some useful compounds in everyday life salts and their properties

A mixture of sand, salt and water can be separated by using which of the following processes?

  1. Only evaporation

  2. Only sedimentation

  3. Decantation and filtration

  4. Filtration, evaporation and condensation
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

First by filtration sand can be separated from the mixture of sand, salt and water. Then by evaporation the water will get evaporated leaving behind the salt. The evaporated vapours can be collected and condensed to get water.

Multiple choice botany biotechnology: principles and processes downstream processing biotechnology biotechnology and its application

After completion of the biosynthetic stage in the bioreactors, the product undergoes separation and purification processes, collectively termed as _______________.

  1. Transformation

  2. Electrophoresis

  3. Downstream processing

  4. Upstream processing
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

After the formation of the product in bioreactors, it undergoes through some processes before a finished product is ready for marketing. The processes include separation and purification of products which is collectively called as downstream processing.

So, the correct option is 'Option C'.