Explain precipitation reaction with two examples each.

Important Questions on Chemical Reactions When and What Type

EASY

8th Chhattisgarh Board

IMPORTANT

Science & Technology Class - VIII>Chapter 4 - Chemical Reactions When and What Type>NOW ANSWER THESE>Q 2

If you prepare lime water and leave it open. What changes will take place in this solution next day and why?

EASY

8th Chhattisgarh Board

IMPORTANT

Science & Technology Class - VIII>Chapter 4 - Chemical Reactions When and What Type>NOW ANSWER THESE>Q 1)

What is neutralization reaction? Give one example.

MEDIUM

8th Chhattisgarh Board

IMPORTANT

Science & Technology Class - VIII>Chapter 4 - Chemical Reactions When and What Type>NOW ANSWER THESE>Q 2)

What is precipitate? Write a reaction in which a precipitate is formed.

MEDIUM

8th Chhattisgarh Board

IMPORTANT

Science & Technology Class - VIII>Chapter 4 - Chemical Reactions When and What Type>NOW ANSWER THESE>Q 3)

Explain oxidation, reduction and redox reactions.

EASY

8th Chhattisgarh Board

IMPORTANT

Science & Technology Class - VIII>Chapter 4 - Chemical Reactions When and What Type>QUESTIONS FOR PRACTICE>Q 1

$\mathrm{NaOH}+\mathrm{HCl}\to \mathrm{NaCl}+{\mathrm{H}}_2\mathrm{O}$ this is a

EASY

8th Chhattisgarh Board

IMPORTANT

Science & Technology Class - VIII>Chapter 4 - Chemical Reactions When and What Type>QUESTIONS FOR PRACTICE>Q 1

On ignition when a substance combines with oxygen, the process is called:-

EASY

8th Chhattisgarh Board

IMPORTANT

Science & Technology Class - VIII>Chapter 4 - Chemical Reactions When and What Type>QUESTIONS FOR PRACTICE>Q 1

Which of these is not a characteristic of chemical reaction?

EASY

8th Chhattisgarh Board

IMPORTANT

Science & Technology Class - VIII>Chapter 4 - Chemical Reactions When and What Type>QUESTIONS FOR PRACTICE>Q 1

$2{\mathrm{KClO}}_3\to 2\mathrm{KCl}+3{\mathrm{O}}_2$ is a reaction:-