Arrange the following species in increasing order of their dipole moments:
NH₃,NF₃,BF₃,H₂O
 

1. $N{H}_3<B{F}_3<N{F}_3<H_{2}O$

2. $B{F}_3<N{F}_3<N{H}_3<H_{2}O$

3. $B{F}_3<N{H}_3<N{F}_3<H_{2}O$

4. $H_{2}O<N{F}_3<N{H}_3<B{F}_3$

Which of the following is a polar molecule?

Which molecule among the following is non-polar?

The correct order of increasing dipole moment is : 

1. ${\mathrm{CF}}_4$ < ${\mathrm{NH}}_3$ < ${\mathrm{NF}}_3$ < ${\mathrm{H}}_2\mathrm{O}$

2. ${\mathrm{CF}}_4$ < ${\mathrm{NH}}_3$ < ${\mathrm{H}}_2\mathrm{O}$ < ${\mathrm{NF}}_3$

3. ${\mathrm{CF}}_4$< ${\mathrm{NF}}_3$ < ${\mathrm{H}}_2\mathrm{O}$ < ${\mathrm{NH}}_3$

4. ${\mathrm{CF}}_4$< ${\mathrm{NF}}_3$< ${\mathrm{NH}}_3$ < ${\mathrm{H}}_2\mathrm{O}$ 

The correct order of the dipole moment of the following molecules is : 

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

1. ${\mathrm{NCl}}_3$ is hydrolysed and gives $\mathrm{HOCl}$ but ${\mathrm{BCl}}_3$ is not hydrolysed

2. Both ${\mathrm{NCl}}_3$ and ${\mathrm{BCl}}_3$ on hydrolysis gives $\mathrm{HCl}$

3. ${\mathrm{NCl}}_3$ on hydrolysis gives $\mathrm{HOCl}$  but ${\mathrm{BCl}}_3$ gives $\mathrm{HCl}$

4. Both ${\mathrm{NCl}}_3$ and ${\mathrm{BCl}}_3$ on hydrolysis gives $\mathrm{HOCl}$

The correct order of ionic character among CaH₂, BeH₂ and BaH₂ is:

1. ${\mathrm{BeH}}_2<{\mathrm{CaH}}_2<{\mathrm{BaH}}_2$

2. ${\mathrm{CaH}}_2<{\mathrm{BeH}}_2<{\mathrm{BaH}}_2$

3. ${\mathrm{BeH}}_2<{\mathrm{BaH}}_2<{\mathrm{CaH}}_2$

4. ${\mathrm{BaH}}_2<{\mathrm{BeH}}_2<{\mathrm{CaH}}_2$

A diatomic molecule AB has a dipole moment of 0.816 debye. If its bond length is 100 pm. then what percentage of an electronic charge will exist on each atom?

1. 83%

2. 37%

3. 10%

4. 17%