Constitutional isomers Identical Stereoisomers Not isomers, different compounds

Question

    Constitutional isomers
       Identical
       Stereoisomers
       Not isomers, different compounds

Question 2. 2. Which of the following is the definition for a pair of diastereomers? (Points : 2.5)        A pair of stereoisomers with stereogenic centers which is not chiral.
       A pair of stereoisomers that are superimposable mirror images of each other.
       A pair of stereoisomers that are not superimposable mirror images of each other.
       A pair of stereoisomers that are not mirror images of each other.

Explanation / Answer

2
A pair of stereoisomers that are not mirror images of each other.

3
III, IV
There mirrir images are non superimposible.

4
The existence of a molecule that is not superimposable on its mirror image.

5.
answer: 3
1st and last carbon's are not chiral

7.
Answer:1

13.
70 % is racemic mixture. Half of them is R which is 35 %
35% of 10 gm = 3.5 gm
Answer: 3.5 gm

Rest of them required pics.Please post rest as different questions

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