Subtopic: Phenols: Preparation & Properties |
86%
Level 1: 80%+
NEET - 2019
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What is the correct electronic configuration of the central metal ion in \(\mathrm{K_{4}Fe(CN)_{6}}\) based on crystal field theory:
| 1. | \(e^{4} t_{2 g}^{ 2}\) | 2. | \(t_{2 g}^{ 4} e_{g}^{2}\) |
| 3. | \(t_{2 g}^{ 6} e_{g}^{0}\) | 4. | \(e^{3} t_{2 g}^{ 3}\) |
Subtopic: VBT, CFT & their Limitations |
83%
Level 1: 80%+
NEET - 2019
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Among the following, the one that is not a greenhouse gas is:
1. Sulphur dioxide
2. Nitrous oxide
3. Methane
4. Ozone
Subtopic: Air Pollution - Greenhouse Effect |
56%
Level 3: 35%-60%
NEET - 2019
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False statement regarding PCl5 is:
| 1. | PCl5 molecule is non-reactive. |
| 2. | Three equatorial P-Cl bonds make an angle of 120° with each other. |
| 3. | Two axial P-Cl bonds make an angle of 180° with each other. |
| 4. | Axial P-Cl bonds are longer than equatorial P-Cl bonds. |
Subtopic: Group 15 - Preparation, Properties & Uses |
75%
Level 2: 60%+
NEET - 2019
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Links
Subtopic: Intro - Flux, Leaching, Roasting & Calcination |
79%
Level 2: 60%+
NEET - 2019
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Subtopic: Carbon Family - Preparations, Properties & Uses |
59%
Level 3: 35%-60%
NEET - 2019
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A compound is formed by cation C and anion A. The anions form hexagonal close packed (hcp) lattice and the cations occupy 75 % of octahedral voids. The formula of the compound is:
1.
2.
3.
4.
Subtopic: Voids, Radius Ratio & Coordination Number |
51%
Level 3: 35%-60%
NEET - 2019
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Subtopic: Introduction to Redox and Oxidation Number |
76%
Level 2: 60%+
NEET - 2019
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The method used to remove the temporary hardness of water is-
1. Synthetic resins method
2. Calgon's method
3. Clark's method
4. Ion-exchange method
Subtopic: Hard & Soft Water |
78%
Level 2: 60%+
NEET - 2019
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Links
Subtopic: α - Amino Acids, Peptide Bond, Proteins & Structure |
68%
Level 2: 60%+
NEET - 2019
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