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प्रश्न
Name a liquid which can be classified as a pure substance and conducts electricity.
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उत्तर
Mercury is a liquid metal that can be classified as a pure substance and a good conductor of electricity.
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संबंधित प्रश्न
All kinds of matter
Classify the following into elements, compounds and mixtures:
- Sodium
- Soil
- Sugar solution
- Silver
- Calcium carbonate
- Tin
- Silicon
- Coal
- Air
- Soap
- Methane
- Carbon dioxide
- Blood
During respiration, glucose and oxygen enter our body cells and waste products carbon dioxide and water leave the body cells by the process of :
State one property in which a solution of sugar in water resembles a mixture of sugar and sand, and one property in which it differs from it.
Name a metal which is yellow in colour.
Classify the following into elements, compounds and mixtures :
arble, Air, Gold, Brass, Sand, Diamond, Graphite, Petroleum, Common salt, Sea-water, Chalk
The elements which normally exist in the liquid state are :
Which of the two will scatter light : soap solution or sugar solution ? Why ?
Calculate the concentration of a solution which contains 2.5 g of salt dissolved in 50 g of water.
What is the effect of temperature on the solubility of solids in liquids ?
Differentiate between a saturated and an unsaturated solution. How will you test whether a given solution is saturated or not ?
A carpenter wants to separate iron nails from saw-dust. Which method of separation should he choose ?
Name the process by which common salt is obtained from sea-water.
Which of the following are homogeneous in nature?
(i) ice
(ii) wood
(iii) soil
(iv) air
The movement of particles in liquids is ______.
Evaporation does form bubbles.
Gases do not diffuse very easily.
______ is used for industrial refrigeration and transporting frozen food.
Define the term matter.
Define the term matter.
