In which of the following substances does sharing of electrons between two atoms occur? a. kcl (l is supposed to be a lower case l) b. ar c. au d. cr2o7^2- ( answer quickly. you in advance.)

Answer

The correct option is D.   Cr2O7^2-

Explanation:

The covalent bond between the two atoms formed when mutual sharing of electrons take place.As in dichromate ion, covalent bond is present which shows sharing of electrons between two atoms Cr and O.KCl is ionic bond, in this case, K completely donate electrons while Cl completely accept the electrons. So we can not say sharing of electrons.Ar and Au are present in free form, not forming bond with others atoms, so we cant say any sharing of electrons.

For cyclohexane compounds drawn in a chair conformation:   -axial bonds are vertical  -equatorial bonds are parallel to two bonds within the ring.  thus, as i assume the chair conformation is drawn:   -the x group is in an axial position, as are the five other vertical bonds.  -three axial bonds are on the top face of the ring  -the other three axial bonds are on the bottom face  the position of the second substituent on each ring carbon is equatorial.  gauche groups must be on an adjacent carbon such as carbon 6 and carbon 2, and also gauche groups are rotated by 60 degrees relative to each other.  drawing the newman projections for c1–c2 and c1–c6 aids in visualizing the groups that are gauche to the y group on c1.  click this link and watch some academic videos that may you more understand the topic