Question

Answer + explanation please

Answer 1

Answer:

Option A is Al right!

Explanation:

The four commonly studied colligative properties are freezing point depression, boiling point elevation, vapor pressure lowering, and osmotic pressure.

But,Now have a look on your options:

1.Osmotic pressure.

2.Boling point.

3.Vapour pressure.

4.Freezing point.

================================

Now check Properties of colligative:

1.Osmotic pressure

2.Boiling point elevation

3.Vapour pressure lowering

4.Freezing point depression

=========See the properties only osmotic pressure is a Property of colligative=========

Hope helpszz

Answer 2

option A is correct

the rest are wrong cause

option B should had been 'elevation in boiling point' given by ΔTb

option C should had been 'relative lowering of vapour pressure'

and option D should had been 'depression in freezing point' given by ΔTf

correct answer A