Observe the following reaction sequence carefully.Find the total number of stereoisomers formed in step (6).Correct answer is '2'. Can you explain this answer?

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Observe the following reaction sequence carefully.

Find the total number of stereoisomers formed in step (6).

Correct answer is '2'. Can you explain this answer?

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In the following sequence of reactions all stereoisomers of (X) have been taken.Find the Total number of products (Z) formed. Correct answer is '4'. Can you explain this answer?

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Both the Cβ–H and Cα–X bonds are breaking in the transition state of E2 reactions. The rate of E2 reaction is of second order. The rate shows primary isotopic (deuterium) effect, i.e. if Cβ–H is replaced by Cβ–D, the rate of reaction decreases sharply. The rate is also corelated with nucleofugality i.e. the ability of leaving group to leave. With a better nucleofuge, the rate of reaction increases. This is called the element effect.The element effect is also observed in E1cB reactions in which the second step is rate determining and elimination of first order w.r.t. conjugate base is observed. For E1cB reaction KH/KD ~ 1, therefore proton abstraction is not involved in the rate determing step. In D2O the incorporation of Deuterium at Cβ–H in the substrate is found many times faster than rate of elimination, in E1cB reaction.In E1 reaction only nucleofuge departs in slow step and a carbocation intermediate is formed.Q.Observe the given reaction. In this reactionWhat is not true about this reaction

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Broadly speaking, there are four types of stereoisomers, namely conformational isomers, geometrical isomers, enantiomers and diastereomers. Although conformational isomers, have same configuration, geometrical isomers have different atoms attached to each of the doubly bonded carbon atom, and enantiomers are due to chirality in the molecule. Enantiomers are also known as optical isomers and diastereomers are those stereoisomers which are not enantiomers. In simple compounds, number of stereoisomers in achiral molecule is given by the relation 2n, where n is the number of dissimilar chiral carbon.Observe the following structures and answer the questions given below :Q. How many stereoisomers are possible in pent-3-en-2-ol, CH3CH=CHCHOHCH3

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Broadly speaking, there are four types of stereoisomers, namely conformational isomers, geometrical isomers, enantiomers and diastereomers. Although conformational isomers, have same configuration, geometrical isomers have different atoms attached to each of the doubly bonded carbon atom, and enantiomers are due to chirality in the molecule. Enantiomers are also known as optical isomers and diastereomers are those stereoisomers which are not enantiomers. In simple compounds, number of stereoisomers in achiral molecule is given by the relation 2n, where n is the number of dissimilar chiral carbon.Observe the following structures and answer the questions given below :Q.The above structure can have how many other diastereomers ?

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Broadly speaking, there are four types of stereoisomers, namely conformational isomers, geometrical isomers, enantiomers and diastereomers. Although conformational isomers, have same configuration, geometrical isomers have different atoms attached to each of the doubly bonded carbon atom, and enantiomers are due to chirality in the molecule. Enantiomers are also known as optical isomers and diastereomers are those stereoisomers which are not enantiomers. In simple compounds, number of stereoisomers in achiral molecule is given by the relation 2n, where n is the number of dissimilar chiral carbon.Observe the following structures and answer the questions given below :Q. The correct names for the above structure is

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