Which of the following solids has the maximum melting point?

The value of the heat of fusion of $NaCl$ is:

Which of the following is not true about the amorphous solids?

State the uses of amorphous solids and describe the cleavage property of amorphous solids.

Select the correct statements.
$(A)$ Crystalline solids have long range order.
$(B)$ Crystalline solids are isotropic.
$(C)$ Amorphous solids are sometimes called pseudo solids.
$(D)$ Amorphous solids soften over a range of temperature.
$(E)$ Amorphous solids have a definite heat of fusion.
Choose the most appropriate answer from the options given below:

Which of the following has the lowest fusion temperature?