3. Which of these is the best insulator of heat?
(b) zinc
(a) water
(d) hydrogen
(c) alcohol
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Answer:
the best insulator of heat are :-
(a) water
(b) zinc
(c )alcohol
(d) hydrogen
the ans is;- option ( a) , ( c)
( water) , ( alcohol )
hope it is help full;;;;;;;
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