HARD
9th ICSE
IMPORTANT
Earn 100

Why are chalk hills slowly dissolved by rain?

Important Questions on Water

HARD
9th ICSE
IMPORTANT
S. Chand's ICSE CHEMISTRY Book -1 CLASS- 9>Chapter 3 - Water>Questions>Q 14
What happens when air is shaken with freshly boiled and cooled water?
HARD
9th ICSE
IMPORTANT
S. Chand's ICSE CHEMISTRY Book -1 CLASS- 9>Chapter 3 - Water>Questions>Q 15

Explain what do you understand by the following diagram:

Question Image

HARD
9th ICSE
IMPORTANT
S. Chand's ICSE CHEMISTRY Book -1 CLASS- 9>Chapter 3 - Water>Questions>Q 16
Explain why:
water is an excellent liquid to use in cooling systems.
HARD
9th ICSE
IMPORTANT
S. Chand's ICSE CHEMISTRY Book -1 CLASS- 9>Chapter 3 - Water>Questions>Q 16
Explain why a solution is always clear and transparent.
MEDIUM
9th ICSE
IMPORTANT
S. Chand's ICSE CHEMISTRY Book -1 CLASS- 9>Chapter 3 - Water>Questions>Q 16
Explain why boiled water has no taste.
MEDIUM
9th ICSE
IMPORTANT
S. Chand's ICSE CHEMISTRY Book -1 CLASS- 9>Chapter 3 - Water>Questions>Q 16
Explain why the solute cannot be separated from the solution by filtration.
MEDIUM
9th ICSE
IMPORTANT
S. Chand's ICSE CHEMISTRY Book -1 CLASS- 9>Chapter 3 - Water>Questions>Q 16
Explain why some solutes are precipitated out when a hot saturated solution of KNO3 is cooled at room temperature.
HARD
9th ICSE
IMPORTANT
S. Chand's ICSE CHEMISTRY Book -1 CLASS- 9>Chapter 3 - Water>Questions>Q 16
Explain why washing soda crystals become coated with a white powder when exposed to air.