# Liquid Solutions

## 30 Questions MCQ Test | Liquid Solutions

Description
Attempt Liquid Solutions | 30 questions in 45 minutes | Mock test for preparation | Free important questions MCQ to study for Exam | Download free PDF with solutions
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The addition of a small amount of ___________ to H2O may actually reduce friction compared to H2O alone.

Solution:

The addition should be done on the order of 0.3% consistency although it can be higher at higher flow velocities, so it could actually reduce friction compared to H2O alone.

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The elevation in the boiling point for 13.44 g of CuCl2 dissolved in 1Kg of water as solvent will be (Kb = 0.52 k kg mol-1 ; molar mass of CuCl2 = 134.4 g/mol )

Solution:

Explanation : ΔTb = iKfm

ΔTb = [1000 × 0.52 × 13.44(1+2α)]/[134.4 × 1000]

ΔTb = 0.156 (∵α = 1)

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