Advertisements
Advertisements
Question
Fill in the following blank :
Milk is a .................... solution but vinegar is a .................... solution.
Advertisements
Solution
Milk is a colloidal solution but vinegar is a true solution.
APPEARS IN
RELATED QUESTIONS
The molecules can move freely anywhere in
Name the terms for the change of vapour into a liquid.
Classify the following into elements, compounds and mixtures:
- Sodium
- Soil
- Sugar solution
- Silver
- Calcium carbonate
- Tin
- Silicon
- Coal
- Air
- Soap
- Methane
- Carbon dioxide
- Blood
When extremely small particles X derived from the anther of a flower were suspended in a liquid Y and observed through a microscope, it was found that the particles X were moving throughout the liquid Y in a very zig-zag way. It was also observed that warmer the liquid Y, faster the particles X moved on its surface.
- What could particles X be ?
- What do you think liquid Y is ?
- What is the zig-zag movement of X known as ?
- What is causing the zig-zag movement of particles X ?
- Name the scientist who discovered this phenomenon.
- What does this experiment tell us about the nature of liquid Y?
During respiration, glucose and oxygen enter our body cells and waste products carbon dioxide and water leave the body cells by the process of :
Name the property which allows metals to be hammered into thin sheets.
What is meant by saying that non-metals are brittle ?
What is the general name of the materials which contain at least two pure substances and show the properties
of their constituents ?
What is the concentration of a solution which contains 16 g of urea in 120 g of solution ?
Define solute.
Define Aerosol Give one example.
What is meant by a solution?
What is the difference between colloids and suspensions ?
Describe the method of separating a mixture containing common salt, sand and ammonium chloride.
With the help of a labelled diagram, describe the method of separating ammonium chloride from a mixture of ammonium chloride and common salt. Mention the difference in the properties of ammonium chloride and sodium chloride which has made this separation possible.
There are three liquids A, B and C, all having different densities and different boiling points. Liquids A and C are organic in nature whereas liquid B is considered to be inorganic. When liquids A and B are put together in a container, they form a single layer. On the other hand, when, liquids B and C are mixed, they form two separate layers :
(a) Which process will you use to separate a mixture of A and B ?
(b) Which method will you use to separate a mixture of B and C ?
(c) Name the liquids which would behave like (i) A (ii) B and (iii) C.
Asmita went to buy an earthen pot. There she saw many things kept for sale.
What is the difference between a substance and an object?
Celsius scale is a scale of temperature in which zero represents the melting point of ice and 100 represents the boiling point of water.
Complete the following table:
| S.No. | CELSIUS | KELVIN |
| 1. | 90°C | 363 K |
| 2. | ______ | 283 K |
| 3. | 63 °C | ______ |
| 4. | 250°C | ______ |
| 5. | ______ | 303 K |
Which statement is not correct for a mixture
