Which of the following orders of acid strength is correct:
1. RCOOH > ROH > HOH > HC ≡ CH
2. RCOOH > HOH > ROH > HC ≡ CH
3. RCOOH > HOH > HC ≡ CH > ROH
4. RCOOH > HC ≡ CH > HOH > ROH
In HS-, I-, RNH2, NH3 the correct order of proton accepting tendency will be:
1. | I- > NH3 > RNH2 > HS- | 2. | NH3 > RNH2 > HS- > I- |
3. | RNH2 > NH3 > HS- > I- | 4. | HS- > RNH2 > NH3 > I- |
The correct order of reactivity towards the electrophilic substitution of the compounds aniline (I), benzene (II), and nitrobenzene (III) is:
1. III > II > I
2. II > III > I
3. I < II > III
4. I > II > III
Pairs of compounds among the following is a pair of enantiomers:
1. | |
2. | |
3. | |
4. |
IUPAC name of the compound given below is:
1. | 4-Ethyl-3-methyloctane | 2. | 3-Methyl-4-ethyloctane |
3. | 2, 3-Diethylheptane | 4. | 5-Ethyl-6-methylocatane |
In the steam distillation of toluene, the pressure of toluene in the vapour is:
1. | Equal to the pressure of the barometer |
2. | Less than the pressure of the barometer |
3. | Equal to vapour pressure of toluene in simple distillation |
4. | More than the vapour pressure of toluene in simple distillation |
Geometrical isomers differ in:
1. Position of the functional group.
2. Position of atoms.
3. Spatial arrangement of atoms.
4. Length of the carbon chain.
and are-
1. Resonating structures
2. Tautomers
3. Geometrical isomers
4. Optical isomers
The IUPAC name of the following is:
CH2 = CH – CH2 – CH2 – C ≡ CH
1. | 1, 5-Hexenyne | 2. | Hex-1-en-5-yne. |
3. | 1-Hexyne-5-ene | 4. | 1, 5-Hexynene |