In which of the following molecule, the internuclear distance will be maximum:
1. CsI
2. CsF
3. LiF
4. LiI
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe first ionization potential of Be and B will be:
1. 8.8 and 8.8
2. 6.6 and 6.6
3. 6.6 and 8.8
4. 8.8. and 6.6
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAn electronic configuration that has maximum difference between II and III ionization potential is:
1. 1s2 2s2 2p6 3s1
2. 1s2 2s2 2p6 3s2
3. 1s2 2s2 2p6
4. 1s2 2s2 2p5
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe correct order of IP(ionization potential) among the following elements Be, B, C, N, O is:
1. | B < Be < C < O < N | 2. | B < Be < C < N < O |
3. | Be < B < C < N < O | 4. | Be < B < C < O < N |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIncorrect order among the following is:
1. | NH3 < PH3 < AsH3 – Acidic |
2. | Li < Be < B < C – Ist Ionization potential |
3. | Al2O3 < MgO < Na2O < K2O - Basic |
4. | Li+ < Na+ < K+ < Cs+ - Ionic radius |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIf an atom has electronic configuration 1s22s22p63s23p63d34s2, we will place it in group number:
1. | Fifth | 2. | Fifteenth |
3. | Second | 4. | Third |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe ions O2–, F–, Na+, Mg2+, and Al3+ are isoelectronic. Their ionic radii show:
1. | A significant increase from O2– to Al3+. |
2. | A significant decrease from O2– to Al3+. |
3. | An increase from O2– to F– and then a decrease from Na+ to Al3+. |
4. | A decrease from O2– to F– and then an increase from Na+ to Al3+. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIonic radii are:
1. | Inversely proportional to the square of effective nuclear charge. |
2. | Directly proportional to the effective nuclear charge. |
3. | Directly proportional to the square of effective nuclear charge. |
4. | Inversely proportional to the effective nuclear charge. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich one of the following oxides is expected to exhibit paramagnetic behaviour:
1. CO2
2. ClO2
3. SO2
4. SiO2
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich one of the following arrangements represents the correct order of electron gain enthalpy (with negative sign) of the given atomic species?
1. F < Cl < O < S
2. S < O < Cl < F
3. O < S < F < Cl
4. Cl < F < S < O
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology