Chiral Centres and Chirality

Q.

How many isomers of $C_5{H}_{11}OH$ will be primary alcohols:

1. 3

2. 2

3. 4

4. 5

5. 8

Q. 39.Which of the following does not show optical activity? EXPLAIN 1.[Co(NH3)4Cl2] 2.[Cr(ox)]3- 3.[Co(ox)2(NH3)2]Cl 4.[Co(en)(NH3)2(H2O)2]Cl2

Q. Identify the optically active compound among the following.

Q. When -cocl grp in a compound becomes prefix then what name should be used Chlorocarbonyl or chloroformyl

Q. Electronic configuration of anion in sodium hydridewill beNa81(1) 1s2(2) 1s1BH(4) 1s 2s1(3) 1s

Q. 33 How to account for R & S configuration for cyclic organic compounds?

Q. Which chloride is the most reactive towards aq NaOH in A) Methyl chloride B) Isopropyl chloride C) Vinyl chloride D) Benzyl chloride

Q.

Which of the following is an isomer of Butane ?

1. Pentane

2. Cyclobutane

3. 

4. Propane

Q. why 1 methyl but 1 yne is not possible

Q. 9. How many chiral compound are possible on mono chlorination of 2 methyl butane??

Q. 28. Correct statements about the compound given below. 1. The compound is optically active 2. The compound possesses cente of symmetry. 3. The compound possesses plane of symmetry. 4. The compound possesses axis of symmetry.

Q.

Chiral molecules are those which are

1. Superimposable on their mirror image

2. Not superimposable on their mirror image

3. Unstable molecules

4. Capable of showing geometrical isomerism

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Q. Molecular orbitals configuration for No will be.

Q. Why the dipole moment of benzene 1, 4 - diol is not zero?