$H_{2}O$ has a net dipole moment while Be$F_2$ has zero dipole moment because :

Which of the following overlops is incorrect (assuming Z axis internuclear axis)?

(A) $2p_{y }+2p_y\to \pi ‐Bond formation$        (B) $2p_x+2p_x\to \sigma ‐Bond formation$

(C) $3d_{xy}+3d_{xy}\to \pi ‐ Bond formation$        (D) $2s+2p_y\to \pi ‐Bond formation$

(E)$3d_{xy}+3d_{xy}\to \delta Bond formation$             (F)$2p_z+2p_z\to \sigma Bond formation$

(a) A,B,C                      (b) C,F

(c) B,E                         (D) B,C,D

How many sigma bonds are in a molecule of diethyl ether, $C_2{H}_{5}O{C}_2{H}_5$

The bond having the highest bond energy is :

Which of the following species has a zero dipole moment?

$\left(\mathrm{i}\right) {\mathrm{CO}}_2$ (ii) ${\mathrm{COCl}}_2$ (iii) ${\mathrm{CH}}_{2 }{\mathrm{Cl}}_2$ (iv) ${\mathrm{BCl}}_3$

The correct statement about carbene $\left(C{H}_2\right)$ is:

Which of the following is a pair of polar molecules?

In which molecule does the chlorine atom has positive partial charge? 

The incorrect order of lattice energy among the following set is:

Which of the following set of species have planar structures?

Both $\mathrm{N}{\left({\mathrm{SiH}}_3\right)}_3$ and $\mathrm{NH}{\left({\mathrm{SiH}}_3\right)}_2$compounds have trigonal planer skeleton. Incorrect statement about both compound is :

Which ionic compound has the largest amount of lattice energy?

$$\begin{gathered} \left(a\right) NaF \left(b\right)Al{F}_3 \\ \left(c\right)AIN \left(d\right)Mg{F}_2 \end{gathered}$$

The incorrect statement regarding $\mathrm{O}{\left({\mathrm{SiH}}_3\right)}_2$ and ${\mathrm{OCl}}_2$ molecule is/are:

Which of the following compound have the same no. of lone pair with their central atom?

(i)${\mathrm{XeF}}_5^{- }$             

(ii) ${\mathrm{BrF}}_3$                 

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

(iv) ${\mathrm{H}}_3{\mathrm{S}}^{+}$               

(v) Triple Methylene     

options are as follows :        

The incorrect order of the force of attraction among the given species is -

The "O$-$N$-$O" bond angle is maximum in:

$$\begin{gathered} \left(a\right) N_{2}O \left(b\right)N{O_2}^{+} \\ \left(C\right)N{O_2}^{-} \left(d\right) N{O_3}^{-} \end{gathered}$$

Among following molecule $\mathrm{N}—\mathrm{Si}$ bond length is shortest:

The geometry with respect to the central atom of the following molecules are:

$\mathrm{N}({\mathrm{SiH}}_3{)}_3; {\mathrm{Me}}_3\mathrm{N}; ({\mathrm{SiH}}_3{)}_3 \mathrm{P}$

Incorrect statement regarding ${\mathrm{BF}}_2{\mathrm{NH}}_2$ molecule is :

Molecule that has $\mu$ (observed) greater than $\mu$ (theoretical) is : 

The bond having minimum bond energy is :

A gas that should not be collected over water is-

The correct increasing order of extent of hydrolysis is :

(a) ${\mathrm{CCl}}_4<{\mathrm{MgCl}}_2<{\mathrm{AlCl}}_3<{\mathrm{SiCl}}_4<{\mathrm{PCl}}_5$           (b) ${\mathrm{CCl}}_4<{\mathrm{AlCl}}_3<{\mathrm{MgCl}}_2<{\mathrm{PCl}}_5<{\mathrm{SiCl}}_4$

(c) ${\mathrm{CCl}}_4<{\mathrm{SiCl}}_4<{\mathrm{PCl}}_5<{\mathrm{AlCl}}_3<{\mathrm{mgCl}}_2$            (d) ${\mathrm{CCl}}_4<{\mathrm{PCl}}_5<{\mathrm{SiCl}}_4<{\mathrm{AlCl}}_3<{\mathrm{MgCl}}_2$

Inorganic benzene reacts with HCl to form a compound ${\mathrm{B}}_3{\mathrm{N}}_3{\mathrm{H}}_9{\mathrm{Cl}}_3$. The protonation occurs at:

The correct order of initials T or F for the following statements is -

(Use T if statement is true and F if it is false)

(i)$\left({\mathrm{CH}}_3{)}_2\mathrm{P}\right({\mathrm{CF}}_3{)}_{3 }$is non-polar $\left({\mathrm{CH}}_3{)}_3\mathrm{P}\right({\mathrm{CF}}_3{)}_{2 }$ is polar molecule 

(ii) ${\mathrm{CH}}_3\hat{\mathrm{P}}{\mathrm{CH}}_3$ bond angles are equal in a molecule

(iii) ${\mathrm{PF}}_3$ will be more soluble in the polar solvent than ${\mathrm{SiF}}_4$

Which substance has the strongest London dispersion forces?

The compound that has the lowest boiling point is-

Which of the following is the correct order for increasing bond angle?

$$\begin{gathered} \left(a\right) N{H}_3<P{H}_3<As{H}_3<Sb{H}_3 \left(b\right)H_{2}O<O{F}_2<C{l}_{2}O \\ \left(c\right) H_{3}T{e}^{+}<H_{3}S{e}^{+}<H_3{S}^{+}<H_3{O}^{+ } \left(d\right) B{F}_3<BC{I}_3<BB{r}_3<B{I}_3 \end{gathered}$$

The correct statement about hydrolysis of ${\mathrm{BCl}}_3$ and ${\mathrm{NCl}}_3$ is-

a. Benzene                         

b. Inorganic Benzene

c. ${\mathrm{PCl}}_3{\mathrm{F}}_{2 }$                           

d. ${\mathrm{PCl}}_2{\mathrm{F}}_3$

The correct sequence of the polarity of the following molecule is -

      a           b            c            d                           

(Where P=polar, NP=non-polar)