- 1(current)
Q. No.Allred Rochow's scale is related to:
1. Electronegativity, radius, and Z*
2. Resonance energy of the molecule, ionisation potential and electron affinity.
3. Bond Polarity, diagonal relationship and periodicity.
4. None of the above.
Subtopic: Â Electronegativity |
 67%
From NCERT
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The electronegativity of the following elements increases in the order of:
| 1. | S < P < N < O | 2. | P < S < N < O |
| 3. | N < O < P < S | 4. | N < P < S < O |
Subtopic: Â Electronegativity |
 72%
From NCERT
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The incorrect order of electronegativity is :
| 1. | Cl > S > P > Si | 2. | Si > Al > Mg > Na |
| 3. | F > Cl > Br > I | 4. | None of the above. |
Subtopic: Â Electronegativity |
 65%
From NCERT
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Arrange the following elements in increasing order of electronegativity N, O, F, C, Si.
Choose the correct answer from the options given below:
Choose the correct answer from the options given below:
| 1. | Si < C < O < N < F | 2. | O < F < N < C < Si |
| 3. | F < O < N < C < Si | 4. | Si < C < N < O < F |
Subtopic: Â Electronegativity |
 78%
From NCERT
NEET - 2024
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Which of the following statements are true?
Choose the correct answer from the options given below:
| A. | Unlike Ga that has a very high melting point, Cs has a very low melting point. |
| B. | On Pauling scale, the electronegativity values of N and Cl are not the same. |
| C. | \(Ar, K^+, Cl^-, Ca^{2+}\) and \(S^{2-}\) are all isoelectronic species. |
| D. | The correct order of the first ionization enthalpies of Na, Mg, Al, and Si is Si > Al > Mg > Na |
| E. | The atomic radius of Cs is greater than that of Li and Rb. |
| 1. | C and D only |
| 2. | A, C and E only |
| 3. | A, B and E only |
| 4. | C and E only |
Subtopic: Â Ionization Energy (IE) |Â Electronegativity |
From NCERT
NEET - 2025
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| Assertion (A): | Fluorine forms only one oxoacid, HOF. |
| Reason (R): | Fluorine has a small size and high electronegativity. |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True and (R) is not the correct explanation of (A). |
| 3. | (A) is True but (R) is False. |
| 4. | (A) is False but (R) is True. |
Subtopic: Â Electronegativity |
 78%
From NCERT
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The basic difference between the electron gain enthalpy (Ea) and electronegativity (EN) is:
| 1. | Ea is the tendency to lose electrons, while EN is the tendency to repel the shared pairs of electrons. |
| 2. | Ea is the tendency to gain neutrons, while EN is the tendency to attract the shared pairs of electrons. |
| 3. | Ea is the tendency to donate electrons, while EN is the tendency to attract the shared pairs of molecules. |
| 4. | Ea is the tendency to gain electrons, while EN is the tendency to attract the shared pairs of electrons. |
Subtopic: Â Electronegativity |Â Electron Affinity (EA) |
 82%
From NCERT
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The statement that "the electronegativity of N on the Pauling scale is 3.0 in all the nitrogen compounds" is incorrect because:
| 1. | Electronegativity of an element is a variable property. |
| 2. | Pauling scale is not used to measure electronegativity. |
| 3. | The electronegativity of N on the Pauling scale is 12.0 |
| 4. | None of the above. |
Subtopic: Â Electronegativity |
 67%
From NCERT
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- 1(current)
Q. No.
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