$H_2O$ is

The atomic number of $Sn$ is $50$. The shape of gaseous $SnCl_{2}$ molecule is

Identify the pair in which the geometry of the species is $T$-shape and square pyramidal,respectively.

Are all the five bonds in $PCl_{5}$ molecule equivalent? Justify your answer.

$A$ molecule $XY_2$ contains two $\sigma$,two $\pi$-bonds and one lone pair of electron in the valence shell of $X$. The arrangement of lone pair as bond pair is

In a regular octahedral molecule,$MX_6$,the number of $X-M-X$ bonds at $180^{\circ}$ is