The Refrigerator works on the principle of ____________?

Which of the following is a surface phenomenon?

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.

Which of the following is a process in which hot, less dense materials rise upward and are replaced by colder, more dense materials?

______ forces water through a semipermeable membrane and removes contaminants. [CHSL Exam 2022 Tier I]

Which of the following is a white to yellowish solid with a weak aromatic odour purified by the process of sublimation? [MTS Non Tech Havaldar CBIC and CBN Examination 2023]

What is the working principle of the Washing Machine?

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. [SICPO Paper I 2023]

Identify the method that is NOT used to purify organic compounds.  [CHSL 2021 Tier I]

What kind of substances are separated using the technique of steam distillation?  [CHSL 2021 Tier I]

Which of the following contains small droplets of liquid or particles of solid dispersed in a gas? [CHSL Exam 2024 Tier I]

Which phenomenon is opposite to solidification? [SICPO Paper I 2024]

Which of the following statements is NOT correct regarding mixtures? [CHSL Exam 2022 Tier I]

Which of the following options are homogeneous mixtures? [SICPO Paper I 2023]

Which of the given statements is correct regarding properties of suspension?

I. Suspension is a heterogeneous mixture.
II. The particles of a suspension can be seen by the naked eye. [MTS Non technical and Havaldar Examination 2021]

Which of the following is NOT a physical change? [Combined Graduate Level Examination Tier I]

The process by which molecules from a region of higher concentration move to a region of lower concentration is known as: [Junior Engineer 2024 Electrical Paper I]

By which of the following process can we separate two miscible liquids? [CHSL Exam 2022 Tier I]

Milk and face cream are examples of ______. [Constable GD Examination 2022]

Which of the following is an example of emulsion? [MTS Non technical and Havaldar Examination 2021]

Which of the following is an example of a ‘solid in a liquid’ type of solution? [CHSL Exam 2024 Tier I]

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: [CHSL Exam 2024 Tier I]

Which of the following techniques can be used to separate the impurities in Milk? [CHSL 2021 Tier I]

Which of the following statements best describes the Hardy Schulze rule? [CHSL Exam 2024 Tier I]

Which phenomenon is opposite to solidification ?

[SSC CPO 2024]

Which of the following options are homogeneous mixtures?

[SSC CPO 2023]

A __________ is a homogeneous mixture of two or more substances.

[RRB NTPC CBT]

Settling down of heavier insoluble components of a mixture of water and insoluble substances is called:

[RRB NTPC CBT]

Which of the following contains small droplets of liquid or particles of solid dispersed in a gas?

[SSC CHSL 2024]

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 :

[SSC CHSL 2024]

By which of the following process does a solid substance is directly converted into gas?

[SSC CHSL 2022]

What term is used to denote intermixing of particles of two different types of matter on their own?

[RRB NTPC CBT]

Milk and face cream are examples of ______.

[SSC GD 2022]

Which one of the following substances undergoes sublimation?

[RRB NTPC CBT]

______ is the measure of relative clarity of a liquid.

[SSC CGL 2021]

For a chemical reaction with a rise in temperature by 10°, the rate constant becomes nearly ____________________.

[SSC CGL 2024]

Which of the following colloid is an example of foam?

[SSC CHSL 2022]

Which of the following statements is NOT correct regarding mixtures?

[SSC CHSL 2022]

Which of the following methods can be used for separating a mixture of NaCl and NH4Cl?

[RRB NTPC CBT]

Which of the following is an example of a ‘solid in a liquid’ type of solution?

[SSC CHSL 2024]

Homogenous mixture of a solute and a solvent is called:

[RRB NTPC CBT]

______ are homogeneous mixtures of two or more components.

[SSC CGL 2019]

Direct change of gas to solid without changing into liquid is called __________.

[SSC GD 2024]

The Rate constant of a reaction doubles with a_________ rise in temperature.

[RRB NTPC CBT]

Which of the following gases, when cooled and compressed, can change from a gas to a supercritical fluid state?

[SSC GD 2024]

________ is used for the separation of components of a mixture containing two miscible liquids that boil without decomposition and have sufficient difference in their boiling points.

[SSC MTS 2022]

Dry ice, ammonium chloride, naphthalene balls and camphor, all these compounds are an example of:

[SSC CGL 2023]

In which process is a solid substance volatilised by heating and the vapour is condensed back to the solid at a cold surface ?

[SSC CPO 2023]

Which of the following statements best describes the Hardy Schulze rule?

[SSC CHSL 2024]

Which one of the following statements is INCORRECT ?

[SSC CGL 2019]