The R and S enantiomers of an optically active compound differ in:
1. Their optical rotation of plane-polarized light.
2. Their reactivity with chiral reagents.
3. Their solubility in achiral reagents.
4. Their melting points.
The number of primary amines of the formula are:
1. 1
2. 3
3. 4
4. 5
But-2-ene exhibits cis-trans isomerism due to-
1. Rotation around sigma bond
2. Rotation around bond
3. Restricted rotation around C=C bond
4. Rotation around double bond
The correct increasing order of C-C bond length is:
1.
2.
3.
4.
An isomer of ethanol is-
1. | Methanol | 2. | Diethyl ether |
3. | Acetone | 4. | Dimethyl ether |
The maximum number of carbon atoms arranged linearly in the molecule, are -
1. 3
2. 4
3. 5
4. 6
The IUPAC name of the above mentioned compound is -
1. p-Phenyl diphenyl
2. p-1-biphenyl benzene
3. 1,1',4',1''-terphenyl
4. Terphenyl
The hydrocarbons having the lowest dipole moment among the following is:
1.
2. CH3 - C ≡ C - CH3
3. CH3 CH2 CH = CH2
4. CH2 = CH - C ≡ CH
The Cl — C — Cl angles in 1,1,2,2-tetrachloroethene and tetrachloromethane will be about :
1.
2.
3.
4.
The compound with an isopropyl group is-
1. 2,2,3,3-Tetramethylpentane
2. 2,2-Dimethylpentane
3. 2,2,3-Trimethylpentane
4. 2-Methylpentane