10th Chemistry | Chapter 15 | Water | solved exercise short questions | free notes |

Assalam_o_Alaikum!
I am ZahraAwan.
This lecture is specially recorded for students of #10th_class, 10th class from all #Punjab_Boards and is based on the current curriculum of study for (#ptb) Chemistry book.

All these lectures are conducted in Urdu/English medium to facilitate Pakistani students.

After watching this video you can answer following questions :


Q 1 : How water rises in plants ?
Q 2 : Which forces are responsible for dissolving polar substances in water ?
Q 3 : Why are non-polar compounds insoluble in water?
Q 4 : How does water dissolves sugar and alcohols ?
Q 5 : How does limestone dissolve in water ?​
Q 6 : Differentiate between soft and hard water .
Q 7 : What are causes of hardness in water ?
Q 8 : What are the effects of temporary hardness in water ?
Q 9 : Mention the disadvantages of detergents .
Q 10 : What is difference between biodegradable and non-biodegradable substances ?
Q 11 : How detergents make the water unfit for life ?
Q 12 : Why are pesticides used ? 
Q 13 : What are the reasons of waterborne diseases ?
Q 14 : How waterborne diseases can be prevented ?





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