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Q. No.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) |
75%
From NCERT
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 |
From NCERT
NEET - 2023
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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 |
76%
From NCERT
NEET - 2023
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Of the following, the element that possesses properties of both metals and nonmetals is:
1. Si
2. Al
3. Zn
4. Hg
1. Si
2. Al
3. Zn
4. Hg
Subtopic: Nature of Compound |
70%
From NCERT
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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.
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) |
82%
From NCERT
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The element expected to form the largest ion to achieve the nearest noble gas configuration is:
1. Na
2. O
3. F
4. N
1. Na
2. O
3. F
4. N
Subtopic: Atomic Size |
53%
From NCERT
NEET - 2023
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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) |
From NCERT
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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
1. C < N < F < O
2. C < N < O < F
3. C < O < N < F
4. C < F < N < O
Subtopic: Ionization Energy (IE) |
77%
From NCERT
NEET - 2022
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh
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) |
71%
From NCERT
NEET - 2022
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh
Match List-I with List-II:
| List-I Elements |
List-II Atomic radii (pm) |
||
| (a) | O | (i) | 88 |
| (b) | C | (ii) | 74 |
| (c) | B | (iii) | 66 |
| (d) | N | (iv) | 77 |
Choose the correct answer from the options given below:
| (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 |
71%
From NCERT
NEET - 2022
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh
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