- 1(current)
Q. No.The correct order of increasing metallic character of Na, Be, P, Mg and Si is:
1. P < Si < Be < Mg < Na
2. Be < Si < P < Mg < Na
3. P < Si < Na < Mg < Be
4. P< Mg < Be < Si < Na
1. P < Si < Be < Mg < Na
2. Be < Si < P < Mg < Na
3. P < Si < Na < Mg < Be
4. P< Mg < Be < Si < Na
Subtopic: Â Modern Periodic Table & Periodicity |Â Nature of Compound |
 68%
Level 2: 60%+
NEET - 2026
Please attempt this question first.
Hints
Please attempt this question first.
Identify the incorrect statement:
| 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 \(\mathrm{Al}.\) |
Subtopic: Â Nature of Compound |
 78%
Level 2: 60%+
NEET - 2024
Hints
Which of the following pair is correctly matched?
1. Basic oxides - \(\mathrm{In_2O_3 , K_2O , SnO_2}\)
2. Neutral oxides - \(\mathrm{CO, NO_2, N_2O}\)
3. Acidic oxides - \(\mathrm{Mn_2O_7, SO_2, TeO_3}\)
4. Amphoteric oxides -\(\mathrm{BeO , Ga_2O_3 , GeO }\)
1. Basic oxides - \(\mathrm{In_2O_3 , K_2O , SnO_2}\)
2. Neutral oxides - \(\mathrm{CO, NO_2, N_2O}\)
3. Acidic oxides - \(\mathrm{Mn_2O_7, SO_2, TeO_3}\)
4. Amphoteric oxides -\(\mathrm{BeO , Ga_2O_3 , GeO }\)
Subtopic: Â Nature of Compound |
Level 3: 35%-60%
NEET - 2023
Hints
Which of the following options correctly represents the sequence of neutral, acidic, basic, and amphoteric oxides, respectively?
| 1. | NO, ZnO, CO2, CaO | 2. | ZnO, NO, CaO, CO2 |
| 3. | NO, CO2, ZnO, CaO | 4. | NO, CO2, CaO, ZnO |
Subtopic: Â Nature of Compound |
 78%
Level 2: 60%+
NEET - 2023
Hints
- 1(current)
Q. No.
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