\(C_6H_5CH_2Br \xrightarrow[2.~H_3O^+] {1.Mg,Ether}~\mathrm X, \)
The product 'X' in the above reaction is:
1. \(\mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}_2 \mathrm{OH} \)
2. \(\mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}_3 \)
3. \(\mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}_2 \mathrm{CH}_2 \mathrm{C}_6 \mathrm{H}_5 \)
4. \(\mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}_2 \mathrm{OCH}_2 \mathrm{C}_6 \mathrm{H}_5\)
In which of the following molecules the central atom does not have sp3 hybridization?
1. SF4
2.
3.
4. CH4
The rate of the reaction
2NO + Cl2 → 2NOCl is given by the rate equation
rate = k[NO]2[Cl2]
The value of the rate constant can be increased by:
1. Increasing the concentration of NO
2. Increasing the concentration of Cl2
3. Increasing the temperature
4. All of the above
Match List-I (Equations) with List-II (Type of processes) and select the correct option.
| List-I (Equation) |
List-II (Type of processes) |
||
| (a) | Kp > Q | (i) | Non-spontaneous |
| (b) | ∆Gº < RT ln Q | (ii) | Equilibrium |
| (c) | Kp = Q | (iii) | Spontaneous and endothermic |
| (d) | T > \(\frac{\Delta H}{\Delta S}\) | (iv) | Spontaneous |
| Options: | (a) | (b) | (c) | (d) |
| 1. | (iii) | (iv) | (ii) | (i) |
| 2. | (iv) | (i) | (ii) | (iii) |
| 3. | (ii) | (i) | (iv) | (iii) |
| 4. | (i) | (ii) | (iii) | (iv) |
Match List-I (substances) with List-II (processes) employed in the manufacture of the substances and select the correct option.
| List-I (Substances) | List–II (Processes) | ||
| (a) | Sulphuric acid | (i) | Haber's Process |
| (b) | Steel | (ii) | Bessemer's Process |
| (c) | Sodium carbonate | (iii) | Leblanc Process |
| (d) | Ammonia | (iv) | Contact Process |
| Options : | (a) | (b) | (c) | (d) |
| 1. | (i) | (ii) | (iii) | (iv) |
| 2. | (iv) | (iii) | (ii) | (i) |
| 3. | (iv) | (ii) | (iii) | (i) |
| 4. | (i) | (iv) | (ii) | (iii) |
Match the compounds given in List -I with their characteristic reactions given in List -II. Select the correct option.
| List – I (Compounds) |
List – II (Reactions) | ||
| (a) | CH3CH2CH2CH2NH2 | (i) | Alkaline hydrolysis |
| (b) | CH3C≡CH | (ii) | With KOH (alcohol) and CHCl3 produce a bad smell. |
| (c) | CH3CH2COOCH3 | (iii) | Gives white ppt. with ammoniacal AgNO3 |
| (d) | CH3CH(OH)CH3 | (iv) | With Lucas' reagent cloudiness appears after 5 minutes. |
Options:
| (a) | (b) | (c) | (d) | |
| 1. | (iii) | (ii) | (i) | (iv) |
| 2. | (ii) | (iii) | (i) | (iv) |
| 3. | (iv) | (ii) | (iii) | (i) |
| 4. | (ii) | (i) | (iv) | (iii) |
Some statements about water are given below:
| (a) | Heavy water is used as a moderator in nuclear reactors. |
| (b) | Heavy water is more associated than ordinary water. |
| (c) | Heavy water is a more effective solvent than ordinary water. |
Which of the above statements are correct?
1. (a), (b), and (c)
2. (b) and (c)
3. (a) and (c)
4. (a) and (b)
Consider the following relations for emf of an electrochemical cell:
| (a) | emf of a cell = (Oxidation potential of the anode) – (Reduction potential of the cathode) |
| (b) | emf of a cell = (Oxidation potential of the anode) + (Reduction potential of the cathode) |
| (c) | emf of a cell = (Reduction potential of the anode) + (Reduction potential of the cathode) |
| (d) | emf of a cell = (Oxidation potential of the anode) – (Oxidation potential of the cathode) |
Which of the following combinations correctly represents the relation for the emf of the cell?
| 1. | (a) and (b) | 2. | (c) and (d) |
| 3. | (b) and (d) | 4. | (c) and (a) |
| (a) | CH3CH2OH | (b) | CH3COCH3 |
| (c) |  |
(d) | CH3OH |
| 1. | Only (b) | 2. | (a), (b) and (c) |
| 3. | (a) and (b) | 4. | (a), (c) and (d) |
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