Per NCERT, SMOKE (solid particles suspended in air) is which type of mixture?
AHomogeneous — perfectly uniform
BHeterogeneous — gas + solid particles unevenly distributed
CPure element
DPure compound
Answer & Solution
Correct answer: B. Heterogeneous — gas + solid particles unevenly distributed
Smoke is heterogeneous (per NCERT). The solid particles are not uniformly dissolved in the gas.
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