Coordinate Bond

Q. Which of the following species are formed by Lewis acid-base interaction?

1. $C{H}_4$
2. $B{F}_3$
3. $PC{l}_4^{+}$
4. $NaB{F}_4$

Q. $N{H}_3$ and $B{F}_3$ form an adduct readily because they form:

1. Covalent bond
2. Coordinate bond
3. Ionic bond
4. hydrogen bond

Q. Which of the following does not have any coordinate bond?

1. $S{O}_2$
2. $HN{O}_2$
3. $H_{2}S{O}_3$
4. $HN{O}_3$

Q. $N{H}_3$ and $B{F}_3$ form an adduct readily because they form:

1. Covalent bond
2. Coordinate bond
3. Ionic bond
4. hydrogen bond

Q. Which of the following statement is correct regarding coordinate bond?

1. Electrons are equally shared by the atoms
2. Electrons of one atom are shared between two atoms
3. Hydrogen bond is formed
4. Electrons are completely donated to other atom with no sharing

Q. The $B—F$ bond length is the shortest in which of the following species?

1. $B{F}_4^{-}$
2. $B{F}_3\leftarrow N{H}_3$
3. $B{F}_3$
4. $B{F}_3\leftarrow N(C{H}_3{)}_3$

Q. Which of the following statement is false:

1. In $PC{l}_3$, the axial bond length is longer than the equatorial bond length
2. The dipole moment of $C{H}_{3}F$ is greater than $C{H}_{3}Cl$
3. In $XeO{F}_4$, the central atom $Xe$ doesnot lie on the plane of the square
4. In $P{F}_{2}C{l}_3$, both the $F$ atoms lie on the axial bond

Q. Which of the following statement is false:

1. In $XeO{F}_4$, the central atom $Xe$ doesnot lie on the plane of the square
2. In $PC{l}_3$, the axial bond length is longer than the equatorial bond length
3. In $P{F}_{2}C{l}_3$, both the $F$ atoms lie on the axial bond
4. The dipole moment of $C{H}_{3}F$ is greater than $C{H}_{3}Cl$