The temperature-time graph given below shows the heating curve for pure wax. From the graph, ans...

The temperature-time graph given below shows the heating curve for pure wax.
From the graph, answer the following:
(i) What is the physical state of the substance at the points \( A, B, C \), and D?
(ii) What is the melting point of the wax?
(iii) What is its boiling point?
(iv) Which portions of the graph indicate that change of state is taking place?
(v) Name the terms used for heat absorbed during change of states involved in the above processes.
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