CBSE Class 7 Science
Question 5 of 13
The World of Metals and Non-metals — Question 6
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Question State with reason(s) whether the following statements are True [T] or False [F].
(i) Aluminium and copper are examples of non-metals used for making utensils and statues.
(ii) Metals form oxides when combined with oxygen, the solution of which turns blue litmus paper to red.
(iii) Oxygen is a non-metal essential for respiration.
(iv) Copper vessels are used for boiling water because they are good conductors of electricity.
[F], Aluminium and copper are examples of metals, not non-metals.
[F], Metal oxides are basic, they turn red litmus paper to blue.
[T], Oxygen is a non-metal and is essential for respiration.
[F], Copper vessels are used for boiling water because copper is a good conductor of heat.