Question

Hydrogen cyanide is poisonous liquid that has a faint almond like smell. one molecule of hydrogen cyanide is made up of one hydrogen atom, one carbon atom, and one nitrogen atom. Which of the following answer choices shows the correct dot diagram
a. :H-C=N

b. H=C=N:

C. H-C-N

D. H-C=N:

Note: On choice C on top of C theres two dots & on the bottom theres two dots. & on choice D before the N theres 3 lines


hydrogen cyanide is poisonous liquid that has a faint almond like smell. one molecule of hydrogen cyanide is made up of one hydrogen atom, one carbon atom, and one nitrogen atom. Which of the following answer choices shows the correct dot diagram

a. :H-C=N

b. H=C=N:

C. H-C-N

D. H-C=N:

Note: On choice C on top of C theres two dots & on the bottom theres two dots. & on choice D before the N theres 3 lines

Answer 1

Answer:

                   Option-D " H-C≡N: " is the correct answer.

Explanation:

                           The valency of Hydrogen is one because it has only one electron in its valence shell. i.e.

                                               H  =  1  =  1s¹

The valency of Carbon is four because it has four unpaired electrons in its valence shell. i.e.

                                C  =  6 =  1s², 2s¹, 2px¹, 2px¹, 2pz¹

The valency of Nitrogen is four because it has three unpaired electrons and in its valence shell. i.e.

                                 N  =  7 =  1s², 2s², 2p¹, 2py¹, 2pz¹

Hence, Hydrogen will share one electron with carbon making one single bond, Carbon will share one electron with hydrogen making a single bond and three electrons with Nitrogen making a triple bond, while, nitrogen will share three electrons with Carbon making a triple bond, also the lone pair of electrons on Nitrogen are specified as double dots on a lewis structure.

Answer 2

"H-C=N:" is the one answer among the choices given in the question that shows the correct dot diagram. The correct option among all the options that are given in the question is the fourth option or option "D". The other choices can be neglected. I hope that this is the answer that has come to your help.