Question

Ethyl alcohol and acetone mixture can be sperated by -
(a) Distillation
(b) Fractional distillation
(c) Filtration
(d) Seperatory funnel
Boyle's law is followed by -
(a) Unsaturated Vapour (b) Saturated Vapour
(c) Both (a) & (b)
(d) None of the above
The characteristic by which two sounds of same frequency
and loudness can be differentiated is
(a) Velocity of sound (b) Pitch (c) Timbre
​

Answer 1

Answer:

1) b) fractional distillation

2) a) Unsaturated Vapour

3) c) timbre

Explanation:

1) The mixture of acetone and ethanol can be separated using fractional distillation. er are two immiscible liquids, thus their mixture can be separated using separating funnel.

2)Boyle's Law is valid for ideal gases in which there is no intermolecular interactions. The saturated vapor does not obey the gas laws whereas unsaturated vapor obeys the gas laws.

3)timbre of sound enables us to distinguish two musical notes coming from different sources but having the same frequency and loudness.

Answer 2

Answer:

1) Fractional distillation

2) Both (a) & (b)

3) Timbre

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