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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
what is crystallization?
(a) How can we separate a mixture of two miscible liquids ?
What is chromatography? What are its various applications and underline the
10 difference between 3 states of matter
explain why sodium chloride solution is regarded as a mixture while sodium chloride itself is a pure substance
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?
(d) Sol is a liquid-solid colloid and Gel is a solid-liquid colloid
why is crystallization technique better than evaporation
why iron sulphide is a compound and not a mixture?
why do liquids flow ? Explain .
Is coal a mixture, element or compound?
State three reasons why you think air is a mixture and water is a compound.
Differentiate between miscible and immiscible liquids..
Is growth ofbody (human) a physical change or a chemical change?
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.
a growing tree is chemical or phycal change..??
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?
a 5% sugar solution means?
i) 5g of sugar is dissolved in 95g of water
ii) 5g of sugar dissolved in 100g of water
what happens when a saturated solution is further heated???????????
what does a solution expressed as 3.5% mass by volume mean????????????
what is the solute and solvent in brass
list some more solid solution with theri solvent & solute
what are the uses of sublimation in daily life( any three uses)?
does chalk powder dissolves in water if not why??
draw a flow chart showing the separation of componets of air. Also, name this process?
is muddy water a colloidal solution or a suspension ?
water is a compound not a mixture .justify it by giving two reasons
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)
WHAT DO U MEAN BY BULK PHENOMENON
what are the similarities and differences between evaporation and boiling ? (please give at least 5 points)
Which method is used to separate benzene from water
define colloidal solution....???
When sodium hydroxide is added to ferric chloride solution,a reddish brown precipitate is formed.The precipitate is separated from the mixture by the process of
A)Evaporation B)Sublimation C)Filtration D)Fractional Distillation
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
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
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 ?
What happens when dilute HCl is poured on a mixture of iron and sulphur.
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
with the help of labelled diagram describe an activity to separate a mixture containing ammoniun chloride and salt
Give reasons as to why colloids are considered as heterogeneous mixtures ?
the rate of diffusion of liquids is higher than that of solids. why?
(ii) Which food colouring contained the most dyes?
(c) Which food colouring did not dissolve in the water?
(d) Which method did Gary use to separate the dyes?
name the process by which common salt is obtained from sea water.
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.?????
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?
What will happen to the melting point of ice if some common salt is added to it? Why?
True solution stable
Colloid is stable
and Suspension is unstable.
How can we separate a mixture of two miscible liquids? Explain and also write the name of method?
Name the process involved in the following :
1) an acetone bottle is left open and the bottle becomes empty
2) a drop of ink placed on the surface of water contained in a glass spreads throughout the water.
how will u separate common salt ,sulphur powder n sand from their mixture
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