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10th Chhattisgarh Board
IMPORTANT
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Plaster of Paris hardens by

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Important Questions on Chemistry in Daily Life

MEDIUM
10th Chhattisgarh Board
IMPORTANT
Science (Theory & Practical) Class-10>Chapter 17 - Chemistry in Daily Life>Exercises>Q 3
What is hard water? What is soft water?
MEDIUM
10th Chhattisgarh Board
IMPORTANT
Science (Theory & Practical) Class-10>Chapter 17 - Chemistry in Daily Life>Exercises>Q 4
What are the factors that cause hardness of water? How many types of hardness are there?
MEDIUM
10th Chhattisgarh Board
IMPORTANT
Science (Theory & Practical) Class-10>Chapter 17 - Chemistry in Daily Life>Exercises>Q 5
How do animals and plants, living in lakes and ponds in snowy regions, survive during winter?
HARD
10th Chhattisgarh Board
IMPORTANT
Science (Theory & Practical) Class-10>Chapter 17 - Chemistry in Daily Life>Exercises>Q 6
What is baking powder? How does it make cakes soft and spongy?
HARD
10th Chhattisgarh Board
IMPORTANT
Science (Theory & Practical) Class-10>Chapter 17 - Chemistry in Daily Life>Exercises>Q 7
What is the process of making Plaster of Paris? Why is it stored in air-tight containers?
HARD
10th Chhattisgarh Board
IMPORTANT
Science (Theory & Practical) Class-10>Chapter 17 - Chemistry in Daily Life>Exercises>Q 8
What is the chemical name for washing soda? Name the three main raw materials used to produce washing soda by the Solvay ammonia process.
MEDIUM
10th Chhattisgarh Board
IMPORTANT
Science (Theory & Practical) Class-10>Chapter 17 - Chemistry in Daily Life>Exercises>Q 9

A compound of calcium, which is a white powder having a yellow tinge, is used in the textile industry and as a disinfectant.

Name the compound.

HARD
10th Chhattisgarh Board
IMPORTANT
Science (Theory & Practical) Class-10>Chapter 17 - Chemistry in Daily Life>Exercises>Q 9

A compound of calcium, which is a white powder having a yellow tinge, is used in the textile industry and as a disinfectant.

Which gas is released when the compound is left out in open air? Give the balanced equation for this reaction.