Number of correct order(s)/statement(s) against the mentioned characteristics among the following (I) N N 2 (IE) (II) LiCl CsCl (Solubility) (III) N 2 + N 2 − (bond order) (IV) SF 4 prod

Question

Number of correct order(s)/statement(s) against the mentioned characteristics among the following

(I) $N > N_{2}$ (IE)

(II) $LiCl > CsCl$ (Solubility)

(III) $N_{2}^{+} > N_{2}^{-}$ (bond order)

(IV) $SF_{4}$ produces only tetrabasic acid on hydrolysis

(V) Direction of back bonding is not same in : $CCl_{2}$ and $C ⊖ Cl_{3}$

(VI) In vapour phase, $BeCl_{2}$ exists in monomer and dimer form. On increasing temperature, composition of monomer increases.

(VII) Maximum number of atoms in a plane in $Al_{2} (CH_{3})_{6}$ is 10

TestHub · Accepted Answer

* (II) is correct: LiCl has higher solubility than CsCl in organic solvents due to its high covalent character (Fajans' Rule).

* (V) is correct: Back-bonding goes from Cl → C in :CCl₂ (into C's vacant $p$ -orbital) but from C → Cl in CCl₃⁻ (into Cl's vacant $d$ -orbital).

* (VI) is correct: Dimer dissociation ( $B e_{2} C l_{4} ⇌ 2 B e C l_{2}$ ) is endothermic, so increasing temperature shifts the equilibrium to increase the monomer form.

* (VII) is correct: In $A l_{2} (C H_{3})_{6}$ , a maximum of 10 atoms (2 Al atoms, 4 terminal methyl carbons, and 4 specific terminal hydrogens) lie in the same plane.

Therefore, the number of correct statements is 4.

Chemistry - CHEMICAL BONDING Question with Solution | TestHub

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