which of the following is a pure substance
a.milk
b.honey
c.soda water
d.N2
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Answer:
honey becoz it can be stored for many decades or centuries
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milk-milk cannot be a pure substance becoz it has many dissolved impurities it may also cointain some part of water
honey-it is also not pure becoz it is made up of many things which bees take from flower
soda water- it cannot be pure as it has many dissolved impurities and elements
n2-it is pure form of nitrogen it is pure it has only atoms of nitrogen
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