Which of the following statements is correct?

  • A
    The number of electrons present in the valence shell of $S$ in $SF_6$ is $12$.
  • B
    The rate of ionic reactions is very slow.
  • C
    According to the $VSEPR$ theory,$SnCl_2$ is a linear molecule.
  • D
    The correct order of stability for ionic compounds formed by $Na^+$,$Mg^{2+}$,and $Al^{3+}$ is $Al^{3+} > Mg^{2+} > Na^+$.

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Similar Questions

Match the items in List-$I$ with the appropriate examples in List-$II$.
List-$I$ List-$II$
$(1)$ Hydrogen bond $(A)$ ${\rm{C}}$
$(2)$ Resonance $(B)$ ${\rm{LiF}}$
$(3)$ Ionic solid $(C)$ ${\rm{H}}_2$
$(4)$ Covalent solid $(D)$ ${\rm{HF}}$
$(E)$ ${\rm{O}}_3$

Which of the following substances is isoelectronic with ${N_2}O$ and has a similar structure?

Select the hybridisation which has non-planar geometry when all are bond pairs,but planar when there are $2$ lone pairs on the central atom:

$A$ tin chloride $Q$ undergoes the following reactions (not balanced):
$Q + Cl^{-} \rightarrow X$
$Q + Me_3N \rightarrow Y$
$Q + CuCl_2 \rightarrow Z + CuCl$
$X$ is a monoanion having pyramidal geometry. Both $Y$ and $Z$ are neutral compounds. Choose the correct option$(s)$.
$(1)$ The central atom in $X$ is $sp^3$ hybridized
$(2)$ The oxidation state of the central atom in $Z$ is $+4$
$(3)$ The central atom in $Z$ has no lone pair of electrons
$(4)$ There is a coordinate bond in $Y$

Select true or false statements :
$(a)$ Promotion of electron is essential condition prior to hybridisation
$(b)$ In $VSEPR$ theory,two or three electron pairs of a multiple bond are treated as a single super pair
$(c)$ Bond length for $CO_2$ lies between double and triple bonds
$(d)$ $Ne_2$ does not exist

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