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naman from PSBBM, Chennai
Subject :NSO    Class : Class 5

star_opt.jpeg The table below shows some properties of four different substances from the kitchen. They are mixed together in a bowl.

Substance

Colour

Dissolves in water

Passes through fine sieve

W

Green

No

No

X

White

No

No

Y

White

Yes

No

Z

White

Yes

Yes

Which of the following is the best way to separate the substances ?

(A) Pour water into the bowl and remove W and X

(B) Pick out the green substance and pour water into the remaining mixture

(C) Pick out the green substance to get W, pour water into the bowl to get X, and heat the remaining solution to get Y

(D) Pick out the green substance, put the remaining mixture into a sieve to get Z, pour water over the remaining substances in the bowl to filter X, and heat the remaining solution to get Y.


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