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Q. No.Which of the following electronegativity order is incorrect?
1. Al < Mg < B < N
2. Al < Si < C < N
3. Mg < Be < B < N
4. S < Cl < O < F
Subtopic: Electronegativity |
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Level 2: 60%+
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Match List-I with List-II
Choose the correct answer from the options given below :
1. A-IV, B-I, C-III, D-II
2. A-II, B-III, C-IV, D-I
3. A-IV, B-I, C-II, D-III
4. A-III, B-IV, C-II, D-I
| List-I | List-II | ||
| (A) | Al3+ < Mg2+ < Na+ < F– | (I) | Ionisation Enthalpy |
| (B) | B < C < O < N | (II) | Metallic character |
| (C) | B < Al < Mg < K | (III) | Electronegativity |
| (D) | Si < P < S < Cl | (IV) | Ionic radii |
1. A-IV, B-I, C-III, D-II
2. A-II, B-III, C-IV, D-I
3. A-IV, B-I, C-II, D-III
4. A-III, B-IV, C-II, D-I
Subtopic: Ionization Energy (IE) | Electronegativity | Atomic Size |
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Level 1: 80%+
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Which of the following statements are not true about the periodic table?
Choose the correct answer from the options given below:
1. A, C and E Only
2. D and E Only
3. A and E Only
4. B, C and E Only
| A. | The properties of elements are function of atomic weights. |
| B. | The properties of elements are function of atomic numbers. |
| C. | Elements having similar outer electronic configuration are arranged in the same period. |
| D. | An element's location reflects the quantum numbers of the last filled orbital. |
| E. | The number of elements in a period is the same as the number of atomic orbitals available in energy level that is being filled. |
1. A, C and E Only
2. D and E Only
3. A and E Only
4. B, C and E Only
Subtopic: Evolution of Periodic Table | Modern Periodic Table & Periodicity | Electronic Configuration |
64%
Level 2: 60%+
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Given below are two statements about X-ray spectra of elements:
| Statement I: | A plot of \(\sqrt{v}\) (\({v}\) = frequency of X-rays emitted) vs atomic mass is a straight line. |
| Statement II: | A plot of \({v}\) (\({v}\) = frequency of X-rays emitted) vs atomic number is a straight line. |
| 1. | Statement I is incorrect and Statement II is correct. |
| 2. | Both Statement I and Statement II are correct. |
| 3. | Both Statement I and Statement II are incorrect. |
| 4. | Statement I is correct and Statement II is incorrect. |
Subtopic: Modern Periodic Table & Periodicity |
51%
Level 3: 35%-60%
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The incorrect decreasing order of atomic radii is:
1. \(Mg > Al > C > O\)
2. \(Al > B > N > F\)
3. \(Be > Mg > Al > Si\)
4. \(Si > P > Cl > F\)
1. \(Mg > Al > C > O\)
2. \(Al > B > N > F\)
3. \(Be > Mg > Al > Si\)
4. \(Si > P > Cl > F\)
Subtopic: Atomic Size |
78%
Level 2: 60%+
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Given below are two statements:
| Statement I: | The first ionization energy of Pb is greater than that of Sn. |
| Statement II: | The first ionization energy of Ge is greater than that of Si. |
| 1. | Statement I is correct but Statement II is incorrect. |
| 2. | Both Statement I and Statement II are incorrect. |
| 3. | Both Statement I and Statement II are correct. |
| 4. | Statement I is incorrect but Statement II is correct. |
Subtopic: Ionization Energy (IE) |
56%
Level 3: 35%-60%
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The correct increasing order of electronegativity for the given elements is:
(a) \(\mathrm{1 s^2 2 s^2 2 p^3}\)
(b) \(\mathrm{1 s^2 2 s^2 2 p^4}\)
(c) \(\mathrm{1 s^2 2 s^2 2 p^5}\)
(d) \(\mathrm{1 s^2 2 s^2 2 p^2}\)
Choose the correct options among the following:
1. a > b > c > d
2. c > b > a > d
3. d > c > b > a
4. c > b > d > a
(a) \(\mathrm{1 s^2 2 s^2 2 p^3}\)
(b) \(\mathrm{1 s^2 2 s^2 2 p^4}\)
(c) \(\mathrm{1 s^2 2 s^2 2 p^5}\)
(d) \(\mathrm{1 s^2 2 s^2 2 p^2}\)
Choose the correct options among the following:
1. a > b > c > d
2. c > b > a > d
3. d > c > b > a
4. c > b > d > a
Subtopic: Electronegativity |
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Level 2: 60%+
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The atomic number of the element with the lowest first ionization enthalpy is:
1. 32
2. 19
3. 35
4. 87
1. 32
2. 19
3. 35
4. 87
Subtopic: Ionization Energy (IE) |
Level 4: Below 35%
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The type of oxide formed by the element among Li, Na, Be, Mg, B and Al that has the least atomic radius is :
1. \(\mathrm{A}_2 \mathrm{O}_3\)
2. \(\mathrm{AO}_2\)
3. AO
4. \(\mathrm{A}_2 \mathrm{O}\)
1. \(\mathrm{A}_2 \mathrm{O}_3\)
2. \(\mathrm{AO}_2\)
3. AO
4. \(\mathrm{A}_2 \mathrm{O}\)
Subtopic: Atomic Size |
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Level 2: 60%+
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The characteristics of elements \(X,Y, \ and\ Z\) with atomic numbers 33, 53, and 83 respectively, are:
1. X and Z are non-metals and Y is a metalloid.
2. X is a metalloid, Y is a non-metal and Z is a metal.
3. X and Y are metalloids and Z is metal.
4. X, Y, and Z are metals.
1. X and Z are non-metals and Y is a metalloid.
2. X is a metalloid, Y is a non-metal and Z is a metal.
3. X and Y are metalloids and Z is metal.
4. X, Y, and Z are metals.
Subtopic: Modern Periodic Table & Periodicity |
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