1. | Li < B < Be < C < N | 2. | Li < Be < C < B < N |
3. | Li < Be < N < B < C | 4. | Li < Be < B < C < N |
1. | Si < C < O < N < F | 2. | O < F < N < C < Si |
3. | F < O < N < C < Si | 4. | Si < C < N < O < F |
1. | The oxidation state and coordination number (or covalency) of \(\mathrm{Al}\) in\( \left[\mathrm{AlCl}\left(\mathrm{{H}_2 {O}}\right)_5\right]^{2+} \) are +3 and 6, respectively. |
2. | \(\mathrm{Na}_2 \mathrm{O}\) is a basic oxide and \(\mathrm{Cl}_2 \mathrm{O}_7\) is an acidic oxide |
3. | The following four species are called isoelectronic species: \( \mathrm{O}^{2-}, \mathrm{F}^{-}, \mathrm{Na}^{+} \mathrm{and}~ \mathrm{Mg}^{2+}\) |
4. | Among the four species \(\mathrm{Mg}, \mathrm{Al}, \mathrm{Mg}^{2+}\) and \(\mathrm{A l^{3+},}\) the smallest one is \(\mathrm{Al}.\) |
List-I (IUPAC official name) |
List-II (IUPAC Symbol) |
||
A. | Mendelevium | I. | Mt |
B. | Meitnerium | II. | Mc |
C. | Moscovium | III. | No |
D. | Nobelium | IV. | Md |
1. | A-III, B-I, C-II, D-IV | 2. | A-IV, B-II, C-I, D-III |
3. | A-IV, B-I, C-II, D-III | 4. | A-I, B-IV, C-II, D-III |
1. | Sodium(Na) | 2. | Oxygen(O) |
3. | Fluorine(F) | 4. | Nitrogen(N) |
1. | NO, ZnO, CO2, CaO | 2. | ZnO, NO, CaO, CO2 |
3. | NO, CO2, ZnO, CaO | 4. | NO, CO2, CaO, ZnO |
Match List-I with List-II:
List-I Elements |
List-II Atomic radii (pm) |
||
(a) | Oxygen (\(O\)) | (i) | 88 |
(b) | Carbon (\(C\)) | (ii) | 74 |
(c) | Boron (\(B\)) | (iii) | 66 |
(d) | Nitrogen (\(N\)) | (iv) | 77 |
(a) | (b) | (c) | (d) | |
1. | (ii) | (i) | (iv) | (iii) |
2. | (iv) | (iii) | (ii) | (i) |
3. | (i) | (iv) | (iii) | (ii) |
4. | (iii) | (iv) | (i) | (ii) |