Question

Give reason for 1.Golbules of mercury kept in a petri dish which is shaken slowly came together froming a big globule 2. A crystal of iodine on slow heating in a closed flask turn unto vapour & fill the complete flask 3.An empty tumbler lowered into a glass breaker containing water on tilting show buddles of air coming out but when not telted no buddles are soon​

Answer 1

The value of 31/-6 is -5.17 in decimal.

So we have to make a no. line and plot -5.17 between -5 and -6.

For better clarification we can divide the space between -5 and -6 into 10 subparts . We have to plot -5.17 between -5.1 and -5.2 .

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