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Subject :NSO    Class : Class 6

Which of the following statements are incorrect?
I. Mixture of kidney beans and chick peas can be separated by winnowing.
II. Salt from sea water can be obtained on a large scale by evaporation.
III. An alloy is a homogeneous mixture of a metal with another metal or nonmetals.
IV. Seeds of wheat can be separated from a bundle of wheat stalks by sieving.

AII and III only
BI and IV only
CI, III and IV only
DNone of these

C is right since III is wrong and alloys can only have metals

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