NCERT Solutions for Chapter: Matter in Our Surroundings, Exercise 3: Long Answer Questions
NCERT Science Solutions for Exercise - NCERT Solutions for Chapter: Matter in Our Surroundings, Exercise 3: Long Answer Questions
Attempt the practice questions on Chapter 1: Matter in Our Surroundings, Exercise 3: Long Answer Questions with hints and solutions to strengthen your understanding. NCERT Exemplar Science - Class 9 solutions are prepared by Experienced Embibe Experts.
Questions from NCERT Solutions for Chapter: Matter in Our Surroundings, Exercise 3: Long Answer Questions with Hints & Solutions
You are provided with a mixture of naphthalene and ammonium chloride by your teacher. Suggest an activity to separate them with well labelled diagram.

It is a hot summer day, Priyanshi and Ali are wearing cotton and nylon clothes respectively. Who do you think would be more comfortable and why?

You want to wear your favourite shirt to a party, but the problem is that it is still wet after a wash. What steps would you take to dry it faster?

Comment on the following statement:
Evaporation produces cooling.

Comment on the following statement:
Sponge though compressible is a solid.

Comment on the following statement:
Rate of evaporation of an aqueous solution decreases with increase in humidity.

Why does the temperature of a substance remain constant during its melting point or boiling point?
