Advertisements
Advertisements
Question
One of the following is a solid foam. This one is :
Options
butter
bread
shaving cream
ruby
Solution
bread
Solid foam is a colloid in which a gas is dispersed in a solid medium. Bread is an example of solid foam.
APPEARS IN
RELATED QUESTIONS
Intermolecular space is maximum in .......... less in ............ and the least in .........
Write true or false for each statement. Rewrite the false statement correctly.
Matter cannot exist in different states.
All kinds of matter
Explain why air is used to inflate tyres.
Fill in the following blanks with suitable words :
The elements which are sonorous are called ..........................
What are pure substances ? Give two examples of pure substances.
Explain what happens when a beam of light is passed through a colloidal solution.
What is a colloid ? Give two examples of colloids (or colloidal solutions)
Differentiate between a saturated and an unsaturated solution. How will you test whether a given solution is saturated or not ?
How would you prepare a saturated solution of sodium chloride in water at 25°C ? What will happen if this solution is cooled to 10°C ?
Which of the following represents the solubility of sugar in water at 20°C ?
State whether the following statement are true or false :
Alcohol can be separated from a mixture of alcohol and water by a separating funnel.
Write a method to separate a mixture of sand and potash alum.
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.
The dyes present in fountain pen ink can be separated by the technique of :
Asmita went to buy an earthen pot. There she saw many things kept for sale.
From what substance has the potter made all the things?
Which among the following ______ will get attracted to by magnet?
Seema visited a Natural Gas Compressing Unit and found that the gas can be liquefied under specific conditions of temperature and pressure. While sharing her experience with friends she got confused. Help her to identify the correct set of conditions
Define the term matter.
Define the term matter.
