Advertisements
Advertisements
प्रश्न
Which of the tubes in Fig. 2.1 (a) and (b) will be more effective as a condenser in the distillation apparatus?
उत्तर
The tube (a) containing beads will be more effective as a condenser because the surface area of the tube increases.
APPEARS IN
संबंधित प्रश्न
Give a brief description of the principle of the following technique taking an example.
Distillation
How is distillation more advantageous than evaporation?
Give a scientific reason.
A wet cloth is wrapped around a water storage container in summer.
Explain the difference between Separation by distillation and by separating funnel.
Write an answer to the following question in your own words.
Which precaution will you take while using the methods of distillation and separation by separating funnel?
Pure water from impure water
- Give the principle involved in the separation of the mixture
- Give the technique of separation of the mixture.
Choose the correct option.
Which of the following techniques is used for the separation of glycerol from soap in the soap industry?
Choose the correct option.
A mixture of acetone and benzene can be separated by the following method:
Match the type of mixture of compounds in Column I with the technique of separation/purification given in Column II.
| Column I | Column II |
| (i) Two solids which have different solubilities in a solvent and which do not undergo reaction when dissolved in it. | (a) Steam distillation |
| (ii) Liquid that decomposes at its boiling point | (b) Fractional distillation |
| (iii) Steam volatile liquid | (c) Simple distillation |
| (iv) Two liquids which have boiling points close to each other | (d) Distillation under reduced pressure |
| (v) Two liquids with large difference in boiling points. | (e) Crystallisation |
Two liquids (A) and (B) can be separated by the method of fractional distillation. The boiling point of liquid (A) is less than boiling point of liquid (B). Which of the liquids do you expect to come out first in the distillate? Explain.
