1.

The correct order of melting points of the compounds given below is() NaCl < NaBr < Nal < NaFil Nal < NaBr < NaCl < NalF(üi) NaP < NaCl < NaBr <Nal(iv) NaCl < NaBr < NaP < Nal

Answer»

while going top to down in periodic table size of element is decrease so inter nuclear attraction also decrease

due to smaller size and higher electronegativity of flourine NaF will have the highest melting point as there is higher forces of attractiondown the group the force of attraction will decrease due to increase in size of anion this option b


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