Q2 of 80 Page 113

Which property of diamond allows it to be used in knives for cutting marble?

Diamond is the hardest naturally occurring substance in the world. Its hardness is made use of in making knives to cut marbles.


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4

Why soap solution appears cloudy?

 1

Which allotrope of carbon is soft, greasy and is used as solid lubricant for heavy machinery operating at a high temperature?

 3

Which of the following are alkenes?

CH4, C2H6, C2H4, C3H6 and C3H8

 4

In order to form a branched organic compound, what should be the minimum number of carbon atoms?