Chemistry · Science General
States of Matter
2,682 Questions
States of matter questions explore physical changes, evaporation, phase transitions, and the properties of liquids and gases. Topics cover density, cryosurgery, heavy water, and electrolytes. This foundational chemistry topic frequently appears in general science sections of SSC and railway exams.
Phase change mechanismsEvaporation and temperature effectsProperties of liquidsPhysical versus chemical changesElectrolytes and heavy water
States of Matter Questions
-
ionic part which is water attracting.
-
long chain hydrocarbon part which is hydrophobic.
-
ionic part which is water repelling and hydrocarbon part which is water attracting.
-
Both 1 and 2
D
Correct answer
Explanation
A detergent molecule has a long hydrocarbon chain that is hydrophobic (water-repelling) and an ionic head that is hydrophilic (water-attracting).
-
suspension
-
foam
-
gel
-
emulsion
D
Correct answer
Explanation
An emulsion is a mixture of two or more liquids that are normally immiscible. In an emulsion, one liquid (the dispersed phase) is dispersed in the other (the continuous phase). Examples of emulsions include milk, mayonnaise etc.
-
liquid.
-
gas
-
solid
-
None of these
A
Correct answer
Explanation
An emulsion is a mixture of two or more liquids that are normally immiscible, such as oil and water. It is a type of colloid.
-
muddy
-
natural
-
hard
-
none of these
A
Correct answer
Explanation
Bleaching powder (calcium hypochlorite) is commonly used in water treatment to disinfect and clarify water by settling impurities, often referred to as muddy water in basic contexts.
-
pure
-
natural
-
hard
-
none of these
A
Correct answer
Explanation
Distilled water is produced by boiling water and condensing the steam, which removes impurities and minerals, resulting in pure water.
-
Aqua regia
-
Bromine water
-
Methylated spirit
-
Brine solution
A
Correct answer
Explanation
Aqua Regia is a highly corrosive fuming liquid which contains hydrochloric acid and nitric acid in the ratio of 3:1. It can dissolve even gold, platinum and other noble metas too.
-
Bromine
-
Chlorine
-
Sodium
-
Aluminium
-
Mercury
A
Correct answer
Explanation
Bromine is the only non-metal that occurs in a liquid state.
-
It is a liquid metal.
-
It expands on heating.
-
It does not stick to the glass wall.
-
All of the above
-
None of these
D
Correct answer
Explanation
All of the above options are correct.
-
cladding
-
annealing
-
blowing
-
sublimation
-
neutralisation
B
Correct answer
Explanation
The process of cooling glass articles slowly to prevent brittleness is called annealing.
-
Molecule
-
Mixture
-
Compound
-
Chemical
C
Correct answer
Explanation
A compound is a substance formed when two or more chemical elements are chemically bonded together in a fixed ratio. Mixtures are not chemically combined.
-
Organic
-
Inorganic
-
Analytical
-
Physical
C
Correct answer
Explanation
Analytical chemistry is the branch concerned with the qualitative and quantitative determination of the chemical components of substances.
C
Correct answer
Explanation
Ink is a mixture of dyes and water, which can be separated easily using techniques like chromatography. Water, salt, and sugar are pure substances or compounds that require more complex chemical or physical processes to separate into their constituent elements.
B
Correct answer
Explanation
Ozone (O3) consists only of oxygen atoms, making it a molecule of an element. Water, salt, and sugar are compounds consisting of two or more different types of elements.
-
To make the cork tight
-
To decrease the temperature
-
To increase the solubility of carbon dioxide
-
To mix the liquids properly
-
At a low temperature
-
At a high temperature
-
At atmospheric temperature
-
At the temperature of ice