Select Board & Class
how can you seperate two immiscible liquids ?
state some examples of diffusion in solid, gases, liquid
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
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.
is kerosene a pure substance
What is the dispersed phase and the dispersion medium in milk?
Is coal a mixture, element or compound?
why is crystallization technique better than evaporation
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.
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?
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????????????
LPG is used in the kitchens in our homes in the-a. Solid form b. compressed form c. gaseous form d. none.
a growing tree is chemical or phycal change..??
draw a flow chart showing the separation of componets of air. Also, name this process?
What is a pure substance ? With example plz( 3 marks )
explain why sodium chloride solution is regarded as a mixture while sodium chloride itself is a pure substance
difference between plasma and BEC
water is a compound not a mixture .justify it by giving two reasons
why is butter called a colloidal mixture?
WHAT DO U MEAN BY BULK PHENOMENON
what are the similarities and differences between evaporation and boiling ? (please give at least 5 points)
define colloidal solution....???
Is smoke homogeneous or heterogeneous
rate of evaporation of aqueous solution decreases with increases in humidity?why.
What will happen to the melting point of ice if some common salt is added to it? Why?
what is the difference between true solution,suspension,colloidal sol ? I want detailed information
The density of 85%sulphuric acid is 1.7g/cm3. What is the volume of the solution which contains 17g of sulphuric acid ?
Is growth ofbody (human) a physical change or a chemical change?
What are the uses of Centrifugation in daily life? (Pls. mention at least five examples)
explain why water is compound
on suffering from fever which will lower down your body temperature more ice or ice cold water ?why?
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
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.
Which gas forms the liquid first as the air is cooled?
what do you observe in the china dish
do all the crystals look alike?
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.
HOW CAN U OBTAIN PURE COPPER SULPHATE FROM IMPURE SAMPLE?
How can we separate a mixture of two miscible liquids? Explain and also write the name of method?
how will u separate common salt ,sulphur powder n sand from their mixture
Copyright © 2020 Applect Learning Systems Pvt. Ltd. All rights reserved.
E.g: 9876543210, 01112345678
We will give you a call shortly, Thank You
Office hours: 9:00 am to 9:00 pm IST (7 days a week)