b) Which of the following is a mixture?
(i) water
(iii) ink
(ii) lime solution
(iv) salt solution
ich is the large
of length among the following?
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all the correct option
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Explanation:
A mixture consists of constituents in indefinite proportion. It may change over time. Air has 78% Nitrogen, 21% Oxygen and 1% other constituents such as CO2, water vapour etc. About 100 years ago proportion of CO2 in air was about 0.029% and now it is 0.035%. Thus we see that it's proportion has changed. Therefore, air is a mixture.
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