(a) Write down the stability order for following four different organic compounds and justify your answer. CH3 H C CH3 H3C LH . CH -CH3 H H (0) (ii) (iii) (iv) (b) A professor assigned his student to synthesize the crystallite size of 0.21 nm of the nanomaterial. What will be the peak position (20) of the corresponding crystallize size in the PXRD data, if the FWHM of sample = 2.20, k = 0.9 and 2 = 1.5406 (degree to radian = Degree x 7/180) are given? = =