Question

Identify, which of the following are incorrect statements?

i) Production of sound when two materials are hit together is a physical change

ii) Expansion or contraction of metals on heating is a chemical change

iii) Shaping of glass by heating is a chemical change

iv) Drawing metals into wires is a physical change
Select one:

i, ii, iv only.


i, ii, iii, iv


ii, iii only


ii, iii, iv only

Answer 1

Explanation:

I ,ii,iv only

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