Multiple Choice Question Answer XIII — task. Science CBSE, Class 9.

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1. Fractional crystallization uses the difference in __________ of the components of a mixture.

Rates of diffusion
Density
Solubility
Melting point

2. Filtration can be used if solute particle size is

Equal to 10 Å
Greater than \(10^-{^7}\) cm
Smaller than \(10^-{^8}\) cm
Smaller than 10 Å

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