Fischer Projection

Q. How many minimum no of carbons are needed for an optically active ether? i)2 ii)3 iii)4 iv)

Q. In Fischer projections, what do vertical and horizontal lines represent? What about intersections?

1. Vertical - below plane
   Horizontal - above plane
   Intersection - carbon
2. Vertical - above plane
   Horizontal - below plane
   Intersection - carbon
3. Vertical - on the plane
   Horizontal - above plane
   Intersection - carbon
4. Vertical - on the plane
   Horizontal - below plane
   Intersection - carbon

Q. In fischer projections, what do horizontal line, vertical line and intersection represent? Match them below.

1. Groups above plane
2. Groups below plane
3. Carbon atom

Q. 12. Increasing order of stability among the three main conformation (ie eclipse, anti, gauche) of 2- fluoroethanol is (a)Eclipse, gauche, anti(b)Gauche, eclipse, anti(c)Eclipse, anti, gauche(d)Anti, gauche, eclipse

Q. 26. In a AB_xL_y (sp^3d-hybridisation of A) have T shape geometry. What will shape of molecule if A forms AB_yL_x type molecule? (1) T-shape (2) Sea-saw (3) TBP (4) Linear

Q. Which of the following statements regarding the given projection is/are correct?

1. W and Y have different configuration.
2. Z is projection of W.
3. W, X, Y and Z are optically active.
4. Y and Z are isomers.