A. needed
B. avoided
C. depends on temperature
D. crystallization does not involve heating
Correct Answer: avoided ✔
Last Updated: February 11, 2021
Related MCQs
- The solution remaining after the formation of crystals is called __________?
- Shaking two immiscible liquids increases__________?
- Which is not a sublime material__________?
- Selection of filter paper depends on size of particles to be__________?
- The major steps involved in complete quantitative analysis are __________?
- Which is not related pair of term used in analytical techniques__________?
- Sintered glass is a porous material used for __________?
- The solvent or mixture of solvents used for separation of compounds is called__________?
- Silica gel and alumina are used as __________?
- Safe and the most reliable method of drying crystals is through__________?
- A process controlled by Distributive law is__________?
- Different components of a mixture have different Rf values due to__________?
- Identification of the components of a sample is__________?
- The technique used to separate components of mixture in solid phase ?
- The tip of funnel should touch the wall of the breaker in order to avoid__________?
- Size of filter paper is selected according to the amount of__________?
- Rate of filtration can be increased by applying gentle suction__________?
- In solvent extraction ether is used to separate products of organic synthesis from__________?
- The use of CaCl2 and PCl5 in the process of crystallization is as a__________?
- Without suction pump filtration is __________?
- Direct conversion of solids into vapours is called __________?
- In CCI4 I2 shows__________?
- Crystallization does not involve__________?
- Animal charcoal adsorbs the coloured__________?
- Ratio of the amount of solute in organic and aqueous solvent is__________?
- 95% ethanol is called__________?
- Which of the following technique is simple and efficient to purify a substance__________?
- Separation of a solid from its hot saturated solution by cooling is called__________?
- Sintered crucible is made up of__________?
- Gooch Crucibles are made up of__________?
- The solid which is left over the filter paper as a result of filtration__________?
- Estimation of amounts of different components in a sample is__________?
- Branch of chemistry that deals with the complete qualitative and quantitative analysis of a substance is__________?
- A technique of partition chromatography in which the solvent is in a pool at the bottom of container__________?
- A substance having very high vapour pressure at its melting point on heating will show__________?
- Fluted filter paper is used to__________?
- Which of the following technique is used for the separation of insoluble particles from liquids ?
- Which of the following way in used for classification of chromatography ?