4) Which of the following Fischer projections represents a...

4) Which of the following Fischer projections represents a meso compound? CHO CHO CHO CHO a) H-+-OH b) H-+-OH c) HO-+-H d) HO-+-H H-+-OH HO-+-H HO-+-H HO-+-H CH2CH3 CH2CH3 CH2CH3 CHO 5) Which of the following compounds is achiral? Br Br CI Br H3C,, -C H3C CH3 CI CI H3C CH3 i ii iii iv a) i and iv b) i and iii c) ii and iii d) iii only

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00:01 Hello students, in this question we have first part.

00:02 In first part basically, we know about the meso compound.

00:07 If we see the meso compound, then meso compound is that compound which contains the two chiral carbons or carbon or you can say chiral centers with having the plane of symmetry.

00:24 So, that is the condition for meso compound.

00:26 Meso compound is that compound in which the two chiral center or carbon should be there and with having the plane of symmetry.

00:33 So, in this particular case, there is only one case that is the option d which have this species that is oh should be here and h is here and oh is here and h is here and cho is here.

00:50 So, we can say that this is chiral carbon and this is also a chiral carbon because all groups are different.

00:55 In this also all groups are different.

00:56 In this molecule, it has the plane of symmetry because oh oh h h cho cho.

01:01 So, we can say that option d is correct here.

01:05 This is a type of the meso compound.

01:07 So, it is a meso compound.

01:09 This is answer of a part and in b part basically, we have to tell about the achiral molecules.

01:20 So, in this achiral molecule, which if we achiral molecule are those type of molecule which basically consists of the symmetry.

01:30 So, if the molecules having the pos plane of symmetry or axis of symmetry anything.

01:36 So, then it is molecule is called as the achiral molecule because it has a symmetry...

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