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.
What is the partial pressure of toluene in the vapour phase during its steam distillation?
| 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. |
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 |
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
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
The correct IUPAC name, among the following, is:
| 1. | Prop-3-yn-1-ol | 2. | But-4-ol-4-yne |
| 3. | But-3-ol-2-yne | 4. | But-3-yn-1-ol |
Which of the following statements is correct?
| 1. |
In Kjeldahl’s method, the compound is heated with copper oxide while in the Dumas method, compound is heated with concentrated sulphuric acid
|
| 2. |
In the Dumas method, the compound is heated with ammonium while in Kjeldahl’s method, compound is heated with concentrated sulphuric acid
|
| 3. |
In Kjeldahl’s method, the compound is heated with copper oxide while in the Dumas method, compound is heated with concentrated nitric acid
|
| 4. | In the Dumas method, the compound is heated with copper oxide while in Kjeldahl’s method, compound is heated with concentrated sulphuric acid. |
An organic liquid vaporises at a temperature___________ its boiling point in steam distillation.
1. Above
2. Below
3. Equal to
4. None of the above
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