Chemistry
Grade-8
Easy
Question
In the distillation process, the condenser is used to
- Heat the components
- Cool the components
- To collect the components
- To store the components
Hint:
Condenser cools the hot liquids.
The correct answer is: Cool the components
Distillation refers to the selective boiling and subsequent condensation of a component in a liquid mixture. It is a separation technique that can be used to either increase the concentration of a particular component in the mixture or to obtain (almost) pure components from the mixture. The process of distillation exploits the difference in the boiling points of the components in the liquid mixture by forcing one of them into a gaseous state.
In the distillation process, the condenser is used to cool the components.
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Identify the incorrect statement/s from the following:
(i) Centrifugation is used in diagnostic laboratories for blood and urine tests.
(ii) Distillation method can be used to separate the butter from the cream.
(iii) Chromatography is useful for separating the alum from impure samples.
Identify the incorrect statement/s from the following:
(i) Centrifugation is used in diagnostic laboratories for blood and urine tests.
(ii) Distillation method can be used to separate the butter from the cream.
(iii) Chromatography is useful for separating the alum from impure samples.
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Arrange the following steps in ascending order which are involved in the distillation of alcohol.
(i) The flask is heated.
(ii) The vapors of alcohol flow into the condenser, where it gets cooled and converts into liquid again.
(iii) Mixture of alcohol and water are taken in in the distillation flask.
(iv) The remaining liquid is stored in the beaker, and water continues to remain in the flask.
(v) Monitor the temperature with the help of a thermometer.
Arrange the following steps in ascending order which are involved in the distillation of alcohol.
(i) The flask is heated.
(ii) The vapors of alcohol flow into the condenser, where it gets cooled and converts into liquid again.
(iii) Mixture of alcohol and water are taken in in the distillation flask.
(iv) The remaining liquid is stored in the beaker, and water continues to remain in the flask.
(v) Monitor the temperature with the help of a thermometer.
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Study the given chromatogram, which was obtained for protein extracted from soya milk. Identify the components which are present in the protein?
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Which of the following method is used for checking the purity of pharmaceuticals?
Which of the following method is used for checking the purity of pharmaceuticals?
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Identify the mixture which can be separated by using distillation.
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In the centrifugation process, particles are separated from a solution according to their
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In chromatography, the filter paper which is used acts as
In chromatography, the filter paper which is used acts as
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______ is a process that can be used to obtain a very pure solid dissolved in a liquid.
______ is a process that can be used to obtain a very pure solid dissolved in a liquid.
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In the simple distillation process, the sample of mixture is first ______, and then _____ to recover the liquids
In the simple distillation process, the sample of mixture is first ______, and then _____ to recover the liquids
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Complete following analogy:
Drugs from the blood : chromatography : a mixture of acetone and water : ………
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Drugs from the blood : chromatography : a mixture of acetone and water : ………
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Multiple true-false type questions.
State whether the following statements are true or false.
I. The principle of distillation is based on the difference in the solubilities of two components in the mixture.
II. Chromatography can also be used to detect contamination in food.
III. The particle of colloids can be separated by using the centrifugation method.
Multiple true-false type questions.
State whether the following statements are true or false.
I. The principle of distillation is based on the difference in the solubilities of two components in the mixture.
II. Chromatography can also be used to detect contamination in food.
III. The particle of colloids can be separated by using the centrifugation method.
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What happens to the atoms during the process of sublimation?
What happens to the atoms during the process of sublimation?
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Identify the technique of separation, which is shown in the below picture.
Identify the technique of separation, which is shown in the below picture.
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The pattern on the paper in chromatographic techniques is known as
The pattern on the paper in chromatographic techniques is known as
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Which of the following apparatus is not used in the process of simple distillation?
Which of the following apparatus is not used in the process of simple distillation?
ChemistryGrade-8
