Which of the following statements is incorrec | vedclass

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Question

(A) $1$. $s-s$ overlapping is not necessarily the weakest; the strength of a bond depends on the extent of overlapping and the energy of the orbitals

Vedclass · Accepted Answer

Bond formed by $s-s$ overlapping is always the weakest.

Vedclass · Answer

(A) $1$. $s-s$ overlapping is not necessarily the weakest; the strength of a bond depends on the extent of overlapping and the energy of the orbitals involved. For example,$1s-1s$ overlapping is stronger than $2p-2p$ overlapping in certain contexts.$2$. $SiO_2$ (silica) exists as a $3-D$ covalent network solid where each $Si$ atom is bonded to four $O$ atoms in a tetrahedral geometry.$3$. Coaxial (head-on) overlapping of atomic orbitals always results in the formation of a $\sigma$ bond.$4$. Hybrid orbitals are directed in space and overlap head-on to form $\sigma$ bonds.Therefore,the statement in option $A$ is incorrect.

Element	Electronegativity
$W$	$2.7$
$X$	$2.1$
$Y$	$0.8$
$Z$	$3.4$

Which of the following statements is incorrect?

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Element Electronegativity
$W$ $2.7$
$X$ $2.1$
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