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Shorts Questions: Sorting Materials into Groups | NCERT Summary: UPSC PDF Download

Q1: Define solid.
Ans:
Any material with a definite shape and volume is considered solid. For instance, boxes, stones, wood, and chairs.

Q2: What is gas?
Ans:
Any material that has neither a definite shape nor a definite volume is referred to as a gas. For instance, oxygen, nitrogen, and hydrogen.

Q3: Define the term insoluble.
Ans:
Insoluble refers to anything that does not dissolve. Oil, for instance, does not dissolve in water.

Q4: Define the word transparent.
Ans: 
The term "transparent material" refers to a material that allows light to pass through it. Some transparent objects are water, air, glass, etc.

Q5: Define metals.
Ans:
Metals are hard, shiny, and excellent electrical conductors. Copper, silver, gold, and other metals are examples of metals.

Q6: What is liquid?
Ans: 
Any material that does not have a definite shape but has a definite volume is referred to as a liquid. For instance, water, milk, and oil.

Q7: Define the term soluble.  
Ans:
Soluble refers to something that can be dissolved, such as sugar or salt that are soluble in water.

Q8: Name two gases which are insoluble in water.
Ans:
Hydrogen and nitrogen are the two gases insoluble in water.  Another example is methane which is insoluble in water.

Q9: Define the word translucent.
Ans: 
Translucent materials allow only a little amount of light to flow through them. Plastic cups, clouds, coloured plastic etc. are examples of translucent objects.

Q10: Define non-metals.
Ans: 
Non-metals are fragile and do not conduct electricity well. They aren't really glossy. Coal and rubber are examples.

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