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Q. No.Which of the following will have a greater value for phosphorus than for magnesium?
I:
Atomic radius
II:
Ionization energy
III:
Electronegativity
1. I only
2. I and II only
3. II and III only
4. I, II and III
Subtopic: Ionization Energy (IE) |
81%
Level 1: 80%+
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Which of the following elements exhibits properties of both metals and nonmetals?
1. Si
2. Al
3. Zn
4. Hg
1. Si
2. Al
3. Zn
4. Hg
Subtopic: Nature of Compound |
68%
Level 2: 60%+
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The correct sequence given below contains neutral, acidic, basic, and amphoteric oxide each, respectively is:
| 1. | NO, ZnO, CO2, CaO | 2. | ZnO, NO, CaO, CO2 |
| 3. | NO, CO2, ZnO, CaO | 4. | NO, CO2, CaO, ZnO |
Subtopic: Nature of Compound |
79%
Level 2: 60%+
NEET - 2023
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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: Nature of Compound |
Level 3: 35%-60%
NEET - 2023
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Which one of the following represents all isoelectronic species?
| 1. | \(\mathrm{Na^+ , Cl^-, O^- , NO^+}\) | 2. | \(\mathrm{N_2O, N_2O_4 , NO^+, NO}\) |
| 3. | \(\mathrm{Na^+ , Mg^{2+} , O^- , F^-}\) | 4. | \(\mathrm{Ca^{2+} , Ar, K^+, Cl^-}\) |
Subtopic: Ionization Energy (IE) |
77%
Level 2: 60%+
NEET - 2023
Hints
The element expected to form the largest ion to achieve the nearest noble gas configuration is:
| 1. | Sodium(Na) | 2. | Oxygen(O) |
| 3. | Fluorine(F) | 4. | Nitrogen(N) |
Subtopic: Atomic Size |
57%
Level 3: 35%-60%
NEET - 2023
Hints
The first and second ionisation enthalpies of a metal are 496 and 4560 \(KJ ~mol^{-1}\), respectively. How many moles of \(HCl\) and \(H_2SO_4\), respectively, will be needed to react completely with 1 mole of the metal hydroxide?
1. 1 and 1
2. 2 and 0.5
3. 1 and 2
4. 1 and 0.5
1. 1 and 1
2. 2 and 0.5
3. 1 and 2
4. 1 and 0.5
Subtopic: Ionization Energy (IE) |
Level 3: 35%-60%
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The correct order of first ionization enthalpy for the given four element is:
| 1. | C < N < F < O | 2. | C < N < O < F |
| 3. | C < O < N < F | 4. | C < F < N < O |
Subtopic: Ionization Energy (IE) |
79%
Level 2: 60%+
NEET - 2022
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The first ionization enthalpies of elements X and Y are 419 kJ mol–1 and 590 kJ mol–1, respectively and the second ionization enthalpies of X and Y are 3069 kJ mol–1 and 1145 kJ mol–1, respectively. The correct statement is:
| 1. | X is an alkali metal and Y is an alkaline earth metal. |
| 2. | X is an alkaline earth metal and Y is an alkali metal. |
| 3. | Both X and Y are alkali metals. |
| 4. | Both X and Y are alkaline earth metals. |
Subtopic: Ionization Energy (IE) |
72%
Level 2: 60%+
NEET - 2022
Hints
Match List-I (Elements) with List-II (Atomic radii (pm)):
| 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) |
Subtopic: Atomic Size |
74%
Level 2: 60%+
NEET - 2022
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