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how can you seperate two immiscible liquids ?
(d) Sol is a liquid-solid colloid and Gel is a solid-liquid colloid
state some examples of diffusion in solid, gases, liquid
(d) Blood is a compound and sea water is a mixture
is air a mixture or compound? give 3 reasons.
what is crystallization?
(a) How can we separate a mixture of two miscible liquids ?
10 difference between 3 states of matter
Is coal a mixture, element or compound?
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 is crystallization technique better than evaporation
Is growth ofbody (human) a physical change or a chemical change?
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..
explain why sodium chloride solution is regarded as a mixture while sodium chloride itself is a pure substance
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.
is copper sulphate solution a colloid , solution or a suspension?
what is the difference between sol,gel and emulsion?
melting of wax is a physical change whereas burning of candle is a chemical change why?
When solid lead nitrate is heated in a test tube, what is not observed during the reaction is:
a)a cracking sound is produced
b)a brown gas is produced
c)a light yellow substance is formed
d)a brown precipitate is formed
what happens when a saturated solution is further heated???????????
what does a solution expressed as 3.5% mass by volume mean????????????
sea water is a solution, suspention or colloid?
what are the uses of sublimation in daily life( any three uses)?
draw a flow chart showing the separation of componets of air. Also, name this process?
a growing tree is chemical or phycal change..??
A solution contains 30g of glucose and 20g of sugar in 500 mL of water. Calculate the mass percentage of glucose and sugar. (Density= 1g/mL)
water is a compound not a mixture .justify it by giving two reasons
WHAT DO U MEAN BY BULK PHENOMENON
what are the similarities and differences between evaporation and boiling ? (please give at least 5 points)
out of given four mixture, the one that appears clear and transparent is :
define colloidal solution....???
Calculate the mass of water and mass of glucose required to make 250g of 40% solution of glucose??
pls answer as soon as possible!!!!!!!
rate of evaporation of aqueous solution decreases with increases in humidity?why.
what is the difference between true solution,suspension,colloidal sol ? I want detailed information
explain why water is compound
does chalk powder dissolves in water if not why??
What are the uses of Centrifugation in daily life? (Pls. mention at least five examples)
write any 2 applications of chromatography
What is the difference in apparatus used for distillation and fractional distillation ?
is muddy water a colloidal solution or a suspension ?
What happens when dilute HCl is poured on a mixture of iron and sulphur.
Mallika's mother was suffering from cold and cough.Mallika prepared tea for her mother.She boiled water in a pan,then she added tea leaves,sugar,and milk to it.She filtered the tea in a cup and served to her mother.
(a) Explain the values shown by Mallika.
(b) Identify solute,solvent,residue and filtrate in this activity.
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
which two properties of metals enable us to give the desired shapes to metals
with the help of labelled diagram describe an activity to separate a mixture containing ammoniun chloride and salt
What is milk of magnesia?
in our NCERT its given colloid but in other books it is is specified as a suspension also the net says it .So can u tell me about it
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.
A student was asked to mix the white of an egg with water and stir well.The student observed that -( 1) Atransparent solution is formed. 2) A translucent mixture is formed. 3) Egg white settles down at the bottom ,(4) Egg white floats on the surface of water.
give reason for your answer
Which gas forms the liquid first as the air is cooled?
CLASSIFY THE FOLLOWING INTO TRUE SOLUTION,COLLOIDAL AND SUSPENSION:
soda-water, milk, sugar-water mixture, blood, ink, smoke in air, chalk-water mixture, shaving cream, muddy river water, lemon juice..
Calculate the mass of glucose and water required to make 250g of 25% solution of glucose.
True solution stable
Colloid is stable
and Suspension is unstable.
1. calculate the masses of cane sugar and water required to prepare 200 grams of 15% mass by mass solution of cane sugar and water.
2. it is desired to prepare 500 grams of 10%mass by mass percentage of urea in water. how much urea should be dissolved in how much volume of water? density of water is 1gm/l
WHY DO OUR PALM FEEL COLD IF WE PUT SOME ACETONE OR PERFUME ON IT.?????
Name two metals which become liquids slightly above room temperature.
Classify the following into elements, compound and mixtures:
Marble, Air, Gold, Brass, Sand, Diamond, Graphite, Petroleum, Common salt, water, chalk.
on suffering from fever which will lower down your body temperature more ice or ice cold water ?why?
HOW CAN U OBTAIN PURE COPPER SULPHATE FROM IMPURE SAMPLE?
classify the following mixture into homogenous mixture .
1. tincture iodine
4. sugar solution
Which of the following shows Tyndall effect?
a.) lime juice
b.) tincture iodine
c.) starch solution
How can we separate a mixture of two miscible liquids? Explain and also write the name of method?
which of the following represents an element ? A) Brass,B)Stainless Steel C)Silica D) sodium 2
how will u separate common salt ,sulphur powder n sand from their mixture
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