Which one is not a D-sugar:
| 1. | 2. | ||
| 3. | 4. |
Match list-I with list-II:
| List-I (Amines) | List-II (pKb values) | ||
| (a) | N-Methylmethanamine | (i) | 9.30 |
| (b) | Ammonia | (ii) | 9.38 |
| (c) | N-Methylaniline | (iii) | 4.75 |
| (d) | Benzenamine | (iv) | 3.27 |
| (a) | (b) | (c) | (d) | |
| 1. | (iv) | (ii) | (i) | (iii) |
| 2. | (iv) | (iii) | (i) | (ii) |
| 3. | (iii) | (iv) | (i) | (ii) |
| 4. | (i) | (iv) | (iii) | (ii) |
| I: | The product of the reaction of phenol with bromine depends on the nature of the solvent. |
| II: | The reaction of phenol with bromine in CHCl3 gives a monosubstituted bromo derivative whereas the reaction of phenol with bromine water yields a trisubstituted bromo derivative of phenol. |
| 1. | I is correct and II is incorrect |
| 2. | I is incorrect and II is correct |
| 3. | Both I and II are correct |
| 4. | Both I and II are incorrect |
The work done when 1 mole of gas expands reversibly and isothermally from a pressure of 5 atm to 1 atm at 300 K is:
[Given: log 5 = 0.6989 and R = 8.314 J K-1 mol-1]
| 1. | Zero J | 2. | 150 J |
| 3. | +4014.6 J | 4. | -4014.6 J |
A set of species capable of showing disproportionation reactions is:
| 1. | \(\mathrm{ClO^–_2, ~ClO^–_3,~ ClO^–_4, ~Cl_2}\) |
| 2. | \(\mathrm{Cl_2, ~ClO^–_2, ~ClO^–_3, ~S_8}\) |
| 3. | \(\mathrm{ClO^–_4, ~ClO^–, ~ClO^–_2, ~F_2}\) |
| 4. | \(\mathrm{ClO^–_3, ~ClO^–_4, ~H_2O_2, ~ClO^–}\) |
Match the bond line structures of hydrocarbons given in List-I with the corresponding boiling points given in List-II.
| List-I (Compound) | List-II (Boiling point in K) | ||
| (a) | (i) | 300.9 | |
| (b) | |
(ii) | 282.5 |
| (c) | |
(iii) | 309.1 |
| (d) | (iv) | 341.9 |
| (a) | (b) | (c) | (d) | |
| 1. | (i) | (iv) | (iii) | (ii) |
| 2. | (iii) | (i) | (iv) | (ii) |
| 3. | (iii) | (iv) | (i) | (ii) |
| 4. | (iv) | (i) | (ii) | (iii) |
Match List-I with List-II:
| List-I (Example of Colloidal systems) |
List-II (Nature of dispersion medium and dispersed phase) |
| (a) Insecticide spray | (i) Dispersion medium - liquid Dispersed phase - solid |
| (b) Whipped cream | (ii) Dispersion medium - gas Dispersed phase - liquid |
| (c) Paint | (iii) Dispersion medium - liquid Dispersed phase - liquid |
| (d) Hair cream | (iv) Dispersion medium - liquid Dispersed phase -gas |
Choose the correct answer from the options given below:
| (a) | (b) | (c) | (d) | |
| 1. | (ii) | (iv) | (i) | (iii) |
| 2. | (iv) | (ii) | (iii) | (i) |
| 3. | (ii) | (iv) | (iii) | (i) |
| 4. | (iv) | (ii) | (i) | (iii) |
Which of the following is not correct about postulates of the kinetic molecular theory of gases?
| 1 . | Pressure of the gas is due to the collision of molecules against the walls of the container. |
| 2. | Volume of the gas is due to the large number of molecules of the gas. |
| 3. | Average kinetic energy of molecules is directly proportional to the absolute temperature of the gas. |
| 4. | The molecules move randomly with different speeds in different directions. |
| 1. | \(\mathrm{CH_3SiCl_3}\) | 2. | \(\mathrm{SiCl_4}\) |
| 3. | \(\mathrm{(CH_3)_2SiCl_2}\) | 4. | \(\mathrm{(CH_3)_3SiCl}\) |
Match the statements given in List-I with the corresponding element given in List-II:
| List-I (Characteristics) |
List-II (Elements) |
||
| (a) | Element that exhibits +3 oxidation state only. | (i) | Mn |
| (b) | An element that exhibits more number of oxidation states. | (ii) | Zn |
| (c) | Element which is a reducing agent in its +2 oxidation state. | (iii) | Sc |
| (d) | An element that is not considered as a transition element. | (iv) | Cr |
| (a) | (b) | (c) | (d) | |
| 1. | (iii) | (iv) | (i) | (ii) |
| 2. | (iv) | (i) | (ii) | (iii) |
| 3. | (ii) | (iv) | (iii) | (i) |
| 4. | (iii) | (i) | (iv) | (ii) |