Arrange NaCl, CaCl2 and AlCl3 in increasing order of lattice enthalpy (positive value).

Al is sp2 hybridized in AlCl3.

(a) Quorum  (b) Motion  (c) Point of order

We have given, Standard enthalpy of formation of ethane = -84.7 kJ/mol molecular weight of ethane = 30 g/mol ∴ No. of moles of ethane in 0.1 kg or 100 g of ethane = \(\frac{100\,g}{30\,g/mol}\) =...

Correct Answer - `ii lt i lt iv lt iii`

Correct Answer - `(a) i lt iv lt ii lt iii " " (b) X lt O lt N lt C " " ( c) Br^(-) lt S^(2-) lt NO_(3)^(-)...

Correct Answer - `10 pi cm//sec`

Propyne > propene > propane

A) same l value and same n value

As the size of the cation decrease, lattice enthalpy increases. Li+ ion is smaller than Na+ ion.  Hence,  Lattice enthalpy of LiF is more than that of NaF.

Correct option is  c) 1:6