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Organic Chemistry -- Halogen Derivatives
6.
How many chiral stereoisomers can be drawn for CH3CHCl—CHBrCH3?
- A.Two
- B.Three
- C.Four
- D.Five
- Answer
- Report
Answer : [C]
7.
Which of the following is true about any R-enantiomer?
- A.It is dextrorotatory
- B.It is levorotatory.
- C.It is an equal mixture of + and –
- D.It is the mirror image of the S-enantiomer.
- Answer
- Report
Answer : [D]
8.
Which of the following is not true about enantiomers?
- A.They have the same melting or boiling point.
- B.They have the same specific rotation.
- C.They have the same density.
- D.They have the same chemical reactivity.
- Answer
- Report
Answer : [B]
9.
Which of the following compounds is ionic?
- A.BF3
- B.CCl4
- C.MgI2
- D.AlCl3
- Answer
- Report
Answer : [C]
10.
In the SN2 reaction of cis-3-methylcyclopentyl bromide with alkali, the
product formed is
- A.a cis alcohol
- B.a trans alcohol
- C.an equimolecular mixture of cis and trans alcohols
- D.there is no reaction
- Answer
- Report
Answer : [B]
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