Draw the electron dot structure of ammonia molecule.

Choose from the following list as what matches the descriptions given below:

List: ${\mathrm{Ca}}^{2+}$, neon, ${\mathrm{H}}_2\mathrm{O},{\mathrm{C}}_2{\mathrm{H}}_2,{{\mathrm{NH}}_4}^{+},{\mathrm{NH}}_4\mathrm{Cl},{{\mathrm{NH}}_2}^{-},\mathrm{HCl}$

A polar molecule.

Choose from the following list as what matches the descriptions given below:

List: ${\mathrm{Ca}}^{2+}$, neon, ${\mathrm{H}}_2\mathrm{O},{\mathrm{C}}_2{\mathrm{H}}_2,{{\mathrm{NH}}_4}^{+},{\mathrm{NH}}_4\mathrm{Cl},{{\mathrm{NH}}_2}^{-},\mathrm{HCl}$

A cation iso-electronic with argon.

Choose from the following list as what matches the descriptions given below:

List: ${\mathrm{Ca}}^{2+}$, neon, ${\mathrm{H}}_2\mathrm{O},{\mathrm{C}}_2{\mathrm{H}}_2,{{\mathrm{NH}}_4}^{+},{\mathrm{NH}}_4\mathrm{Cl},{{\mathrm{NH}}_2}^{-},\mathrm{HCl}$

A noble gas with atomic number 10.

Choose from the following list as what matches the descriptions given below:

List: ${\mathrm{Ca}}^{2+}$, neon, ${\mathrm{H}}_2\mathrm{O},{\mathrm{C}}_2{\mathrm{H}}_2,{{\mathrm{NH}}_4}^{+},{\mathrm{NH}}_4\mathrm{Cl},{{\mathrm{NH}}_2}^{-},\mathrm{HCl}$

An anion formed by the removal of hydrogen from ammonia.

Choose from the following list as what matches the descriptions given below:

List: ${\mathrm{Ca}}^{2+}$, neon, ${\mathrm{H}}_2\mathrm{O},{\mathrm{C}}_2{\mathrm{H}}_2,{{\mathrm{NH}}_4}^{+},{\mathrm{NH}}_4\mathrm{Cl},{{\mathrm{NH}}_2}^{-},\mathrm{HCl}$

A molecule in which ionic, covalent, and dative bonds are present.

Choose from the following list as what matches the descriptions given below:

List: ${\mathrm{Ca}}^{2+}$, neon, ${\mathrm{H}}_2\mathrm{O},{\mathrm{C}}_2{\mathrm{H}}_2,{{\mathrm{NH}}_4}^{+},{\mathrm{NH}}_4\mathrm{Cl},{{\mathrm{NH}}_2}^{-},\mathrm{HCl}$

A cation formed by three covalent and one dative bond. 

Choose from the following list as what matches the descriptions given below:

List: ${\mathrm{Ca}}^{2+}$, neon, ${\mathrm{H}}_2\mathrm{O},{\mathrm{C}}_2{\mathrm{H}}_2,{{\mathrm{NH}}_4}^{+},{\mathrm{NH}}_4\mathrm{Cl},{{\mathrm{NH}}_2}^{-},\mathrm{HCl}$

A molecule having two lone pairs of electrons.

Choose from the following list as what matches the descriptions given below:

List: ${\mathrm{Ca}}^{2+}$, neon, ${\mathrm{H}}_2\mathrm{O},{\mathrm{C}}_2{\mathrm{H}}_2,{{\mathrm{NH}}_4}^{+},{\mathrm{NH}}_4\mathrm{Cl},{{\mathrm{NH}}_2}^{-},\mathrm{HCl}$

A molecule having a triple co-valency.