Species having maximum $\text{'}CI—O\text{'}$ bond order is-

$1. {\mathrm{CIO}}_3^{-}$
$2. {\mathrm{CIO}}_{3 }$
$3. {\mathrm{CIO}}_{2 } { }_{ }$
$4. {\mathrm{CIO}}_2^{-}$

Which of the following have $\mathrm{X}-\mathrm{O}-\mathrm{X}$ linkage?

(where X is Central atom)

(i) $C{r}_2{O}_7^{2-}$                            (ii) ${\mathrm{S}}_2{\mathrm{O}}_3^{2-}$                       

(iii) Pyrosilicate                     (iv) Hyponitrous Acid

(1) (i) (iii)                                             

(2) (iii) (iv)

(3) (i) (iii) (iv)                                       

(4) (i) (ii)

Which bonds are formed by a carbon atom with $s{p}^2$ - hybridization?

1. $4\pi - bonds$

2. $2\pi - bonds and 2\sigma bonds$

3. $1\pi -bonds and 3\sigma -bonds$

4. $4\delta - bonds$

Which of the following species contains maximum number of atoms in 'XY' plane?

  $1. Xe{F}_{2 }$
$2. S{F}_6$
$3. I{F}_{3 }$
$4. All$

What is the hybridization of the carbon atoms labeled $C_1$ and $C_2$ respectively in glycine?

   $C_1$             $C_2$

$\mathrm{1.\; s}{p}^2$          $s{p}^2$

2. $s{p}^2$          $s{p}^3$

$\mathrm{3.\; s}{p}^3$          $s{p}^2$

$\mathrm{4.\; s}p$            s$p^3$

Choose the correct option for the following molecule:

1. Non planar   

2. $\mu \ne 0$   

3. Both (1) and (2)     

4. $\mu =0$

Select the correct statement:

(a)$HS{O}_5^{-}$ ion has one $\mathrm{S}—\mathrm{O}—\mathrm{H}$ linkage

(b) Number of $\mathrm{B}—\mathrm{O}—\mathrm{B}$ linkages in Borax is equal to number of $\mathrm{P}—\mathrm{O}—\mathrm{P}$ linkages in ${\mathrm{P}}_4{\mathrm{O}}_{10}$

(c) Hybridization of both sulphur on $\left({\mathrm{H}}_2{\mathrm{S}}_2{\mathrm{O}}_5\right)$ (pyrosulphurous acid) is name but oxidization state of both sulphur are different

(d) Tetra -Polyphosphoric has four $\mathrm{P}—\mathrm{O}—\mathrm{P}$ and no $\mathrm{P}—\mathrm{P}$ linkage

The H-O-H bond angles in $H_3{O}^{+}$ are approximately ${107}^{°}$. The orbitals used by oxygen in these bond are best describe as: 

1. $\mathrm{p }orbitals$

2. sp hybrid orbitals

3. $s{p}^2$hybrid orbital

4. $s{p}^3$ hybrid orbital

Which of the following molecular species is not linear?

(1) $(\mathrm{CN}{)}_2$                                                       

(2) ${\mathrm{OCN}}^{-}$

(3) ${\mathrm{XeF}}_2$                                                         

(4) ${\mathrm{S}}_3^{2-}$

Which of the following statements is correct about the \(\mathrm{I_3^+}\)​ and \(\mathrm{I_3^-}\)​ molecular ions?

1. The number of lone pairs on the central atoms is the same in both ions.
2. The hybridization of the central atoms is the same in both ions.
3. Both are polar species.
4. Both are planar species.