A) Sugar
B) Brass
C) \[C{{O}_{2}}\]
D) \[N{{O}_{2}}\]
Correct Answer: B
Solution :
Sugar, \[C{{O}_{2}}\] and \[N{{O}_{2}}\] are compounds (their formation involves chemical reactions). Brass is an alloy (a homogeneous mixture) formed by cooling the liquid mixture of copper and zinc.
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