Questions Related to chemistry
The constituents of the mixture are easily seen with naked eyes. Then the mixture is ____________.
The homogenous mixture consists of different components which are uniformly distributed in the solution and it can't be seen with naked eyes.
When sunlight passes through the window of a classroom, its path is visible. This is due to ________ of light.
Due to Tyndall effect, there occurs scattering of light and the path becomes visible. The dust particles scatter the beam of light.
Which of the following statement(s) is\are not correct?
Atoms of the same element can have different mass numbers and they are known as isotopes.
The example of heterogeneous mixture is:
A heterogeneous mixture is simply any mixture that is not uniform in composition. Two immiscible liquids form heterogeneous mixtures.
A mixture of $100mL$ of $CO,CO_2$ and $O_2$ was sparked. When the resulting gaseous mixture was passed through $KOH$ solution, concentration in volume decrease by $80mL$,. the composition of initla mixture may be (in the same order).
(a) $30mL,60mL,10mL$ (b) $30mL,50mL,20mL$ (c) $50mL,30mL,20mL$ (d) $20mL,70mL,10mL$
Molecules is the smallest particle of _______________
Two solid mixtures are :
All of them are alloys. Alloy is a material which is composed by mixing two or more metals or a metal and a non-metal. An alloy may be a solid solution of the elements (a single phase), a mixture of metallic phases (two or more solutions) or an intermetallic compound with no distinct boundary between the phases.
Examples of alloys are steel, solder, brass, pewter, phosphor bronze and an amalgam.
The separation of mixture depends on :
Separation of mixture basically depends on the physical and chemical properties of the components. These factors are state, melting and boiling point, solubility, magnetic nature etc.
A mixture refers to the physical combination of two or more substances on which the chemical identities are retained and are mixed in the form of solutions, suspensions, and colloids.
Soil is a homogeneous mixture.
Soil is a heterogeneous mixture.