Which of the following plot represents the variation of \(ln ~k\) versus \(\frac 1{T}\) according to the Arrhenius equation?
| 1. |  |
2. |  |
| 3. |  |
4. |  |
Subtopic: Arrhenius Equation |
86%
Level 1: 80%+
NEET - 2024
Hints
An organic compound that is immiscible with water and undergoes steam distillation has a normal boiling point of 250 °C. At what temperature does the mixture of this compound and water distill during steam distillation?
1. Above 100 °C but significantly below 250 °C2. Above 250 °C
3. At 250 °C
4. Slightly below 100 °C
Subtopic: Qualitative Analysis of Organic Compounds |
Level 4: Below 35%
NEET - 2024
Hints
Given below are two statements:
In the light of the above statements, choose the correct answer from the options given below:
| Statement I: | Glycogen is similar to amylose in its structure. |
| Statement II: | Glycogen is found in yeast and fungi also. |
| 1. | Statement I is correct and Statement II is incorrect. |
| 2. | Statement I is incorrect and Statement II is correct. |
| 3. | Both Statement I and Statement II are correct. |
| 4. | Both Statement I and Statement II are incorrect. |
Subtopic: Polysaccharides & their Importance |
Level 3: 35%-60%
NEET - 2024
Hints
In the following reaction involving manganese:
3MnO₄²⁻ + 4H⁺ → 2MnO₄⁻ + MnO₂ + 2H₂O
Which oxidation state of manganese is not observed in the reaction?
A. +6
B. +2
C. +4
D. +7
E. +3
Mark the most appropriate answer from the options given below:
| 1. | D and E only | 2. | B and D only |
| 3. | A and B only | 4. | B and E only |
Subtopic: Introduction to Redox and Oxidation Number |
81%
Level 1: 80%+
NEET - 2024
Hints
Given below are two statements:
In the light of the above statements, choose the correct answer from the options given below:
| Statement I: | The Balmer spectral line for H atom with lowest energy appears at \(\dfrac 5{36}\mathrm{ R_H~ cm^{-1}}\) (\(\mathrm{R_H}\) = Rydberg constant) |
| Statement II: | When the temperature of a black body increases, the maxima of the curve (intensity versus wavelength) shifts towards shorter wavelength. |
| 1. | Statement I is correct and Statement II is incorrect. |
| 2. | Statement I is incorrect and Statement II is correct. |
| 3. | Both Statement I and Statement II are correct. |
| 4. | Both Statement I and Statement II are incorrect. |
Subtopic: Bohr's Theory | Planck's Theory |
67%
Level 2: 60%+
NEET - 2024
Hints
Identify D in the following sequence of reactions:
| 1. | n-Propyl alcohol | 2. | Isopropyl alcohol |
| 3. | Propanal | 4. | Propionic acid |
Subtopic: Alcohols: Preparation & Properties |
64%
Level 2: 60%+
NEET - 2024
Hints
Identify the incorrect statement.
| 1. | \(\mathrm{PEt}_3\) and \(\mathrm{Asph}_3\) as ligands can form \(\mathrm{d} \pi-\mathrm{d} \pi\) bond with transition metals. |
| 2. | The \(\mathrm{N}-\mathrm{N}\) single bond is as strong as the \(\mathrm{P}-\mathrm{P}\) single bond. |
| 3. | Nitrogen has unique ability to form \(\mathrm{p \pi-p \pi}\) multiple bonds with nitrogen, carbon and oxygen. |
| 4. | Nitrogen cannot form \(\mathrm{d} \pi-\mathrm{p} \pi\) bond as other heavier elements of its group. |
Subtopic: Group 15 - Preparation, Properties & Uses |
77%
Level 2: 60%+
NEET - 2024
Hints
Match the items given in List-I with those in List-II and select the correct option given below:
Options:
| List-I (Test/reagent) |
List-II (Radical identified) |
||
| A | Lake Test | I | \( \mathrm{NO}_3^{-} \) |
| B | Nessler's Reagent | II | \(\mathrm{Fe}^{3+} \) |
| C | Potassium sulpho cyanide | III | \( \mathrm{Al}^{3+}\) |
| D | Brown Ring Test | IV | \(\mathrm{NH}_4^{+}\) |
Options:
| 1. | A-IV, B-II, C-III, D-I | 2. | A-II, B-IV, C-III, D-I |
| 3. | A-II, B-III, C-IV, D-I | 4. | A-III, B-IV, C-II, D-I |
Subtopic: Detection of Cations |
57%
Level 3: 35%-60%
NEET - 2024
Hints
Match Column I (Molecule) with Column II (Bond enthalpy) and mark the correct option:
| Column-I (Molecule) |
Column-II (Bond enthalpy) \(\left(k J \mathrm{~mol}^{-1}\right)\) |
||
| A. | HCl | I. | 435.8 |
| B. | \(\mathrm{N_2}\) | II. | 498 |
| C. | \(\mathrm{H_2}\) | III. | 946.0 |
| D. | \(\mathrm{O_2}\) | IV. | 431.0 |
| 1. | A-III, B-IV, C-I, D-II | 2. | A-IV, B-I, C-III, D-II |
| 3. | A-IV, B-III, C-II, D-I | 4. | A-IV, B-III, C-I, D-II |
Subtopic: Types of Chemical Bond |
66%
Level 2: 60%+
NEET - 2024
Hints
The standard cell potential of the following cell \(\mathrm{{Zn}\left|{Zn}^{2+}({aq}) \| {Fe}^{2+}({aq})\right| {Fe}~\text{ is }~0.32 {~V}}.\) Calculate the standard Gibbs energy change for the reaction:
\(\mathrm{{Zn}({s})+{Fe}^{2+}({aq}) \rightarrow {Zn}^{2+}({aq})+{Fe}({s})}\)
(Given : \(1 \mathrm{~F}=96487 \mathrm{C} mol^{-1}\))
\(\mathrm{{Zn}({s})+{Fe}^{2+}({aq}) \rightarrow {Zn}^{2+}({aq})+{Fe}({s})}\)
(Given : \(1 \mathrm{~F}=96487 \mathrm{C} mol^{-1}\))
| 1. | \(-61.75 \mathrm{{~kJ} {~mol}}^{-1}\) | 2. | \(+5.006 \mathrm{{~kJ} {~mol}}^{-1}\) |
| 3. | \(-5.006 \mathrm{{~kJ} {~mol}}^{-1}\) | 4. | \(+61.75 \mathrm{{~kJ} {~mol}}^{-1}\) |
Subtopic: Relation between Emf, G, Kc & pH |
85%
Level 1: 80%+
NEET - 2024
Hints
© 2026 GoodEd Technologies Pvt. Ltd.