1. | \(p_i=\chi_ip^o_i,\) where \(\chi_i=\) mole fraction of \(i^\text{th}\) gas in a gaseous mixture \(p_{i}^{o}=\) pressure of \(i^\text{th}\) gas in a pure state |
2. | \(\mathrm{p}=\mathrm{p}_{1}+\mathrm{p}_{2}+\mathrm{p}_{3} \) |
3. | \(\mathrm{p}=\mathrm{n}_{1} \frac{\mathrm{RT}}{\mathrm{V}}+\mathrm{n}_{2} \frac{\mathrm{RT}}{\mathrm{V}}+\mathrm{n}_{3} \frac{\mathrm{RT}}{\mathrm{V}}\) |
4. | \(\mathrm{p}_{i}=\chi_{i} \mathrm{p} \), where \(\mathrm{p}_{i}=\) partial pressure of \(i^\text{th}\) gas \(\chi_i=\) mole fraction of \(i^\text{th}\) gas in a gaseous mixture |
1. | Enzymes are very specific for a particle reaction and substrate. |
2. | Enzymes are biocatalysts. |
3. | Like chemical catalysts, enzymes reduce the activation energy of bio processes. |
4. | Enzymes are polysaccharides. |
List-I | List-II | ||
(a) | Li | (i) | absorbent for carbon dioxide |
(b) | Na | (ii) | electrochemical cells |
(c) | KOH | (iii) | coolant in fast breeder reactors |
(d) | Cs | (iv) | photoelectric cell |
(a) | (b) | (c) | (d) | |
1. | (ii) | (iii) | (i) | (iv) |
2. | (iv) | (i) | (iii) | (ii) |
3. | (iii) | (iv) | (ii) | (i) |
4. | (i) | (iii) | (iv) | (ii) |
I | Primary aliphatic amines react with HNO2 to give unstable diazonium salts. |
II | Primary aromatic amines react with HNO2 to form diazonium salts which are stable even above 300 K. |
1. | I is incorrect but II is correct |
2. | Both I and II are correct |
3. | Both I and II are incorrect |
4. | I is correct but II is incorrect |
1. | |
2. | Benzene, Cl2, anhydrous FeCl3 |
3. | Phenol, NaNO2, HCl, CuCl |
4. |
1. | Lithium is the strongest reducing agent among the alkali metals. |
2. | Alkali metals react with water to form their hydroxides. |
3. | The oxidation number of K in KO2 is +4. |
4. | Ionisation enthalpy of alkali metals decreases from top to bottom in the group. |
1. | 2. | ||
3. | 4. |
1. | \(2 \mathrm{CuSO}_{4}(\mathrm{aq})+2 \mathrm{Ag}(\mathrm{s}) \rightarrow 2 \mathrm{Cu}(\mathrm{s})+\mathrm{Ag}_{2} \mathrm{SO}_{4}(\mathrm{aq}) \) |
2. | \(\mathrm{CuSO}_{4}(\mathrm{aq})+\mathrm{Zn}(\mathrm{s}) \) \(\rightarrow \mathrm{ZnSO}_{4}(\mathrm{aq})+\mathrm{Cu}(\mathrm{s}) \) |
3. | \(\mathrm{CuSO}_{4}(\mathrm{aq})+\mathrm{Fe}(\mathrm{s}) \) \(\rightarrow \mathrm{FeSO}_{4}(\mathrm{aq})+\mathrm{Cu}(\mathrm{s}) \) |
4. | \(\mathrm{FeSO}_{4}(\mathrm{aq})+\mathrm{Zn}(\mathrm{s}) \) \(\rightarrow \mathrm{ZnSO}_{4}(\mathrm{aq})+\mathrm{Fe}(\mathrm{s}) \) |
I: | The acidic strength of monosubstituted nitrophenol is higher than phenol because of electron withdrawing nitro group. |
II: | o-Nitrophenol, m-nitrophenol and p-nitrophenol will have same acidic strength as they have one nitro group attached to the phenolic ring. |
1. | I is incorrect but II is correct. |
2. | Both I and II are correct. |
3. | Both I and II are incorrect. |
4. | I is correct but II is incorrect. |