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Q.7 A solution contains 16 g of urea in 120 g of solution. What is mass by mass
percentage of solution
Q.8 What are suspensions? How can they be separated? Write any two properties of
suspensions.
Q.9 Sandhya took some water from a pond and a filter in two glasses and allowed a
beam of light from a torch to pass through them. Explain her observations with suitable
reason.
Q.10.How much water Sahil should add to 500 mL of 20% alcohol solution to get a 10%
solution.
