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how can you seperate two immiscible liquids ?
is air a mixture or compound? give 3 reasons.
state some examples of diffusion in solid, gases, liquid
Which of the following shows Tyndall effect?
a.) lime juice
b.) tincture iodine
c.) starch solution
what is crystallization?
(a) How can we separate a mixture of two miscible liquids ?
Sucrose (sugar) crystals obtained from sugarcaneand beetroot are mixed together.Will it be a pure substance or a mixture?Give reasons for the same
10 difference between 3 states of matter
fog & clouds are both colloidal in nature.how do they differ?
why is crystallization technique better than evaporation
what is the difference between distillation and fractional distillation in tabular form?and dont tell mw that go to this link . give me this answer by typing in tabular form.
What is the dispersed phase and the dispersion medium in milk?
why do liquids flow ? Explain .
State three reasons why you think air is a mixture and water is a compound.
Differentiate between miscible and immiscible liquids..
difference between aqueous and non aqueous solutions?
define aerosol, emulsion, sol, gel
List out the difference between Solution,Suspension and Colloidal Sollution in all aspects.
melting of wax is a physical change whereas burning of candle is a chemical change why?
what is the difference between sol,gel and emulsion?
Is coal a mixture, element or compound?
what are the uses of sublimation in daily life( any three uses)?
what happens when a saturated solution is further heated???????????
what does a solution expressed as 3.5% mass by volume mean????????????
draw a flow chart showing the separation of componets of air. Also, name this process?
pls answer......
If we mix chalk in water it will also show Tyndall Effect right?
water is a compound not a mixture .justify it by giving two reasons
how would you separate the mixture containing sulphur and sand
WHAT DO U MEAN BY BULK PHENOMENON
what are the similarities and differences between evaporation and boiling ? (please give at least 5 points)
explain why sodium chloride solution is regarded as a mixture while sodium chloride itself is a pure substance
define colloidal solution....???
Write 10 activities of Lesson-2 (Is matter around us pure) under following headings
a) object
b) Appartus
c) Procedure
d) Diagram
e) observation
f) conclusion
rate of evaporation of aqueous solution decreases with increases in humidity?why.
how can i prepare a saturated solution of sodium chloride in water at 25 degree celcius? what will happen if this solution is cooled at 10 degree celcius ?
what is the difference between true solution,suspension,colloidal sol ? I want detailed information
explain why water is compound
write any 2 applications of chromatography
(d) Blood is a compound and sea water is a mixture
Is growth ofbody (human) a physical change or a chemical change?
What is the difference in apparatus used for distillation and fractional distillation ?
suggest separation technique
1,mercury and water
2.potassium chloride and ammonium chloride
3.common salt,water and sand
4.kerosene oil,water and sand
properties of true solution , suspension and colloid
What happens when dilute HCl is poured on a mixture of iron and sulphur.
What are the uses of Centrifugation in daily life? (Pls. mention at least five examples)
with the help of labelled diagram describe an activity to separate a mixture containing ammoniun chloride and salt
ink is true solution or colloid or suspension??
some say true solution because its only powder and water.
some say colloid.
is it suspension because we can see so many colors when we do chromatography
the rate of diffusion of liquids is higher than that of solids. why?
name the process by which common salt is obtained from sea water.
how will u separate common salt ,sulphur powder n sand from their mixture
Which gas forms the liquid first as the air is cooled?
Calculate the mass of glucose and water required to make 250g of 25% solution of glucose.
WHY DO OUR PALM FEEL COLD IF WE PUT SOME ACETONE OR PERFUME ON IT.?????
on suffering from fever which will lower down your body temperature more ice or ice cold water ?why?
Classify the following into elements, compound and mixtures:
Marble, Air, Gold, Brass, Sand, Diamond, Graphite, Petroleum, Common salt, water, chalk.
define evaporation
How can we separate a mixture of two miscible liquids? Explain and also write the name of method?
Explain why water is a compound and not a mixture ?
HOW CAN U OBTAIN PURE COPPER SULPHATE FROM IMPURE SAMPLE?
Which method is better for recovering sugar from sugar solution (evaporation/crystallization) Give reason for your answer.
How 'sea-water' can be classified as a homogeneous as well as heterogeneous mixture ?
EXPLAIN why particles of colloidal solution do not settle down when kept undisturbed whereas particles of suspension do settle down?
what is concentration?
E.g: 9876543210, 01112345678
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Syllabus
how can you seperate two immiscible liquids ?
is air a mixture or compound? give 3 reasons.
state some examples of diffusion in solid, gases, liquid
Which of the following shows Tyndall effect?
a.) lime juice
b.) tincture iodine
c.) starch solution
what is crystallization?
a)dilute sulphuric acid is added to a mixture of iron fillings and sulphur powder
b)dilute sulphuric acid is added to a mixture of iron fillings and sulphur powder heated to red hot followed by cooling
(a) How can we separate a mixture of two miscible liquids ?
Sucrose (sugar) crystals obtained from sugarcaneand beetroot are mixed together.Will it be a pure substance or a mixture?Give reasons for the same
10 difference between 3 states of matter
fog & clouds are both colloidal in nature.how do they differ?
why is crystallization technique better than evaporation
what is the difference between distillation and fractional distillation in tabular form?and dont tell mw that go to this link . give me this answer by typing in tabular form.
What is the dispersed phase and the dispersion medium in milk?
Answer in both cases
(It is practical based question)
why do liquids flow ? Explain .
State three reasons why you think air is a mixture and water is a compound.
Differentiate between miscible and immiscible liquids..
difference between aqueous and non aqueous solutions?
define aerosol, emulsion, sol, gel
List out the difference between Solution,Suspension and Colloidal Sollution in all aspects.
melting of wax is a physical change whereas burning of candle is a chemical change why?
what is the difference between sol,gel and emulsion?
Is coal a mixture, element or compound?
what are the uses of sublimation in daily life( any three uses)?
what happens when a saturated solution is further heated???????????
what does a solution expressed as 3.5% mass by volume mean????????????
draw a flow chart showing the separation of componets of air. Also, name this process?
pls answer......
If we mix chalk in water it will also show Tyndall Effect right?
water is a compound not a mixture .justify it by giving two reasons
how would you separate the mixture containing sulphur and sand
WHAT DO U MEAN BY BULK PHENOMENON
what are the similarities and differences between evaporation and boiling ? (please give at least 5 points)
muddy water , sugar in water , ink blood , soda water , foam
Pls help guys...
In lakhmir singh it is given suspension and in ncert it is given colloidal....and if u search in Google it giving both the answer....pls help
explain why sodium chloride solution is regarded as a mixture while sodium chloride itself is a pure substance
define colloidal solution....???
Write 10 activities of Lesson-2 (Is matter around us pure) under following headings
a) object
b) Appartus
c) Procedure
d) Diagram
e) observation
f) conclusion
rate of evaporation of aqueous solution decreases with increases in humidity?why.
how can i prepare a saturated solution of sodium chloride in water at 25 degree celcius? what will happen if this solution is cooled at 10 degree celcius ?
what is the difference between true solution,suspension,colloidal sol ? I want detailed information
explain why water is compound
write any 2 applications of chromatography
(d) Blood is a compound and sea water is a mixture
Is growth ofbody (human) a physical change or a chemical change?
What is the difference in apparatus used for distillation and fractional distillation ?
suggest separation technique
1,mercury and water
2.potassium chloride and ammonium chloride
3.common salt,water and sand
4.kerosene oil,water and sand
properties of true solution , suspension and colloid
What happens when dilute HCl is poured on a mixture of iron and sulphur.
What are the uses of Centrifugation in daily life? (Pls. mention at least five examples)
with the help of labelled diagram describe an activity to separate a mixture containing ammoniun chloride and salt
ink is true solution or colloid or suspension??
some say true solution because its only powder and water.
some say colloid.
is it suspension because we can see so many colors when we do chromatography
the rate of diffusion of liquids is higher than that of solids. why?
1.A solution does not show tyndall effect.
2.A solution has homogenity at particle level.
3.The particles of a solution are stable.
4.The particles of a solution are less tha 10-9 nm.
5.The particles cannot be seen with naked eye.
6.the components of a solution cannot be separated using filtration method.
7.A solution contains solute which is present in smaller quantity and solvent which is present in larger quantity.
This is the right answer or not
name the process by which common salt is obtained from sea water.
how will u separate common salt ,sulphur powder n sand from their mixture
Which gas forms the liquid first as the air is cooled?
Calculate the mass of glucose and water required to make 250g of 25% solution of glucose.
WHY DO OUR PALM FEEL COLD IF WE PUT SOME ACETONE OR PERFUME ON IT.?????
on suffering from fever which will lower down your body temperature more ice or ice cold water ?why?
Classify the following into elements, compound and mixtures:
Marble, Air, Gold, Brass, Sand, Diamond, Graphite, Petroleum, Common salt, water, chalk.
define evaporation
How can we separate a mixture of two miscible liquids? Explain and also write the name of method?
Explain why water is a compound and not a mixture ?
HOW CAN U OBTAIN PURE COPPER SULPHATE FROM IMPURE SAMPLE?
Which method is better for recovering sugar from sugar solution (evaporation/crystallization) Give reason for your answer.
How 'sea-water' can be classified as a homogeneous as well as heterogeneous mixture ?
EXPLAIN why particles of colloidal solution do not settle down when kept undisturbed whereas particles of suspension do settle down?
what is concentration?
1) what could be X
2) name the material Y
3) name the process Z
4) which process you would use to recover both the components X and Y from tincture of iodine .