Cluster · Chemical Kinetics and Phase Changes
| Question | Category | Subtype | Difficulty | |
|---|---|---|---|---|
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Settling down of heavier insoluble components of a mixture of water and insoluble substances is called: [RRB NTPC CBT] pipeline-1181427
|
science | — | intermediate | |
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Which one of the following substances undergoes sublimation? [RRB NTPC CBT] pipeline-1191831
|
science | — | intermediate | |
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Which is the more common name for solid carbon dioxide? [SSC CGL 2019] pipeline-1181070
|
science | — | intermediate | |
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What is another name for solid carbon dioxide? [SSC GD 2024] pipeline-1181089
|
science | — | intermediate | |
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At normal temperature and atmospheric pressure, ______ has a density of 1.87 kg/m3, which is 1.5 times heavier than air and exists as a liquid below the critical temperature of 31°C. [SSC CPO 2023] pipeline-1181110
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science | — | intermediate | |
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Which of the following is true regarding CO2 ? [RRB NTPC CBT] pipeline-1181072
|
science | — | intermediate | |
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What is another name for frozen carbon dioxide? [SSC MTS 2022] pipeline-1181109
|
science | — | intermediate | |
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Which of the following is a white to yellowish solid with a weak aromatic odour purified by the process of sublimation ? [SSC MTS 2023] pipeline-1180946
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science | — | intermediate | |
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Decrease in which of the following factors leads to an increase in the rate of evaporation? [SSC CGL 2021] pipeline-1179852
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science | — | intermediate | |
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Select the INCORRECT statement from the following. [SSC MTS 2024] pipeline-1179851
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science | — | intermediate | |
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Which among the following is a name of the colloidal system in which a liquid is dispersed in a liquid? pipeline-3195
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reasoning | — | intermediate | |
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The joint process of vapourisation and condensation is called _____________________. pipeline-6585
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reasoning | — | intermediate | |
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Which gas in its solid state is also known as dry ice? pipeline-1684
|
reasoning | — | intermediate | |
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The method of separating a mixture of soluble solids by dissolving them in a suitable hot solvent and then lowering the temperature slowly is called: pipeline-1286215
|
mp_police | — | intermediate | |
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If the rate of a chemical reaction doubles with every 10°C increase in temperature, how many times will the reaction rate increase when the temperature rises from 30°C to 70°C? pipeline-1333896
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bihar_police | — | intermediate | |
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The ratio of 'mass by volume percentage' to 'volume by volume percentage' of a given solution gives ______. pipeline-1335668
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bihar_police | percentage | intermediate | |
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If a substance decomposes when heated to its boiling point, the suitable method is ________. pipeline-435995
|
bihar_police | — | intermediate | |
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Centrifugation is a technique used in the separation of which type of solution? pipeline-442172
|
bihar_police | — | intermediate | |
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A substance that readily forms a colloidal solution in contact with water is called a ______. pipeline-436010
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bihar_police | — | intermediate | |
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Blood is an example of which of the following colloids? pipeline-435912
|
bihar_police | — | intermediate | |
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Which of the following is a heterogeneous mixture? pipeline-431761
|
bihar_police | — | intermediate | |
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Which of the following is a Homogenous mixture? pipeline-434463
|
bihar_police | — | intermediate | |
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Which one is not a method of separation of the mixture and its constituent particles? pipeline-435905
|
bihar_police | — | intermediate | |
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Which of the following is incorrect regarding Mixtures? pipeline-431540
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bihar_police | — | intermediate | |
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What is the other name for solid carbon dioxide? pipeline-1363763
|
rajasthan | — | intermediate | |
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Which of these mixtures are not separated by the Distillation method? pipeline-1090643
|
bihar_police | — | intermediate | |
|
Glycerol is separated in soap industries by:
pipeline-1353687
|
rajasthan | — | intermediate | |
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For a chemical reaction with rise in temperature by 10°C, the rate constant becomes nearly ____________________. pipeline-1351889
|
rajasthan | — | intermediate | |
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Name a crystal-like, white compound with strong pungent aroma and taste, which is purified by the process of sublimation. pipeline-1369764
|
up_police | — | intermediate | |
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What is the other name for solid carbon dioxide? pipeline-1365291
|
up_police | — | intermediate | |
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What is the more common name for solid carbon dioxide? pipeline-1359452
|
up_police | — | intermediate | |
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Which phenomenon is opposite to solidification? pipeline-1358178
|
up_police | — | intermediate | |
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In which process is a solid substance volatilised by heating and the vapour is condensed back to the solid at a cold surface? pipeline-1358181
|
up_police | — | intermediate | |
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What is the phenomenon called when a liquid changes into vapour at any temperature below its boiling point? pipeline-1158188
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up_police | — | intermediate | |
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What is the other name for solid carbon dioxide? pipeline-1036364
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rpf | — | intermediate | |
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Which one is not a method of separation of the mixture and its constituent particles? pipeline-613020
|
rpf | — | intermediate | |
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In petroleum refining process, ________ is used to separate its compounds. pipeline-578181
|
rpf | — | intermediate | |
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If a substance decomposes when heated to its boiling point, the suitable method is ________. pipeline-481699
|
rpf | — | intermediate | |
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What is the working principle of the washing machine? pipeline-46478
|
rpf | — | intermediate | |
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Blood is an example of which of the following colloids? pipeline-213723
|
rpf | — | intermediate | |
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The method of separating a mixture of soluble solids by dissolving them in a suitable hot solvent and then lowering the temperature slowly is called: pipeline-1301982
|
defence | — | intermediate | |
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Which of the following statements is/are true? A. CO2 is known as dry ice. B. The particles of liquid absorb energy from the surrounding to regain the energy lost during evaporation. C. Solid CO2 gets converted directly to gaseous state. pipeline-1272640
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defence | — | intermediate | |
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If the rate of a chemical reaction doubles with every 10°C increase in temperature, how many times will the reaction rate increase when the temperature rises from 30°C to 70°C? pipeline-1252058
|
defence | — | intermediate | |
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In which process is a solid substance volatilised by heating and the vapour is condensed back to the solid at a cold surface? pipeline-1200712
|
delhi_police | — | intermediate | |
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Which of the following options are homogeneous mixtures? pipeline-1200710
|
delhi_police | — | intermediate | |
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Which of the following is a surface phenomenon? pipeline-1200698
|
delhi_police | — | intermediate | |
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Rate of reaction DOES NOT depend on pipeline-1198699
|
delhi_police | — | intermediate | |
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Which condition out of the following will increase the evaporation of water? pipeline-1157900
|
delhi_police | — | intermediate | |
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A homogeneous mixture of two or more substances is known as the? pipeline-1155474
|
delhi_police | — | intermediate | |
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Which of the following is an example of a ‘solid in a liquid’ type of solution? pipeline-1131327
|
delhi_police | — | intermediate |