What is meant by occlusion? Give one example.

Important Questions on Water, Solution, Solubility and Hydrogen

HARD

8th CBSE

IMPORTANT

Pearson IIT Foundation Chemistry>Chapter 5 - Water, Solution, Solubility and Hydrogen>PRACTICE QUESTIONS (CLASSROOM WING)>Q 26

Define specific heat capacity of a substance.

HARD

8th CBSE

IMPORTANT

Pearson IIT Foundation Chemistry>Chapter 5 - Water, Solution, Solubility and Hydrogen>PRACTICE QUESTIONS (CLASSROOM WING)>Q 27

A piece of red litmus paper is dipped into the water kept in a beaker and some amount of $\mathrm{CaO}$ was poured in it. Write the observations made in the case.

HARD

8th CBSE

IMPORTANT

Pearson IIT Foundation Chemistry>Chapter 5 - Water, Solution, Solubility and Hydrogen>PRACTICE QUESTIONS (CLASSROOM WING)>Q 27

A piece of red litmus paper is dipped into the water kept in a beaker and ${\mathrm{SO}}_2$ gas was passed through beaker. Write the observations made in the case.

HARD

8th CBSE

IMPORTANT

Pearson IIT Foundation Chemistry>Chapter 5 - Water, Solution, Solubility and Hydrogen>PRACTICE QUESTIONS (CLASSROOM WING)>Q 28

What is the difference between a deliquescent substance and a hygroscopic substance?

HARD

8th CBSE

IMPORTANT

Pearson IIT Foundation Chemistry>Chapter 5 - Water, Solution, Solubility and Hydrogen>PRACTICE QUESTIONS (CLASSROOM WING)>Q 29

How are fog and mist formed?

HARD

8th CBSE

IMPORTANT

Pearson IIT Foundation Chemistry>Chapter 5 - Water, Solution, Solubility and Hydrogen>PRACTICE QUESTIONS (CLASSROOM WING)>Q 29

Two hot iron balls of same mass and temperature are placed in two liquids A and B of same mass and same temperature taken in two separate containers. $100 \mathrm{g}$ of liquid A requires $45$ calories heat for an increase in temperature by $5°\mathrm{C}$. $120 \mathrm{g}$ of liquid B requires $60$ calories heat for $10 °\mathrm{C}$ rise in temperature. In which container, thermal equilibrium will be attained faster? 

HARD

8th CBSE

IMPORTANT

Pearson IIT Foundation Chemistry>Chapter 5 - Water, Solution, Solubility and Hydrogen>PRACTICE QUESTIONS (CLASSROOM WING)>Q 30

Water obtained from which source contains more minerals and why?

HARD

8th CBSE

IMPORTANT

Pearson IIT Foundation Chemistry>Chapter 5 - Water, Solution, Solubility and Hydrogen>PRACTICE QUESTIONS (CLASSROOM WING)>Q 31

What are the different factors on which solubility of a solid in a liquid depend? Explain with a reason.