conformers

Which of the following is gauche conformer?

Which conformer of cyclohexance is chiral?

Identify the most stable conformer of glycol.

Which of the following is the most stabilised conformer of ?

Which conformer of n-butane is chiral?

Define conformations.

a. Draw (i) half chair, (ii) skew or twist boat cyclohexane conformation. b. Why (i) the skew or twist boat conformation is more stable than the boat conformation, (ii) the half chair is the least stable conformation?