The correct shape and hybridisation of \(\text{BrF}_5\) is:
1. Square pyramidal and \(\text{sp}^3\text{d}^2\)
2. Square pyramidal and \(\text{d}^2\text{sp}^3\)
3. Trigonal bipyramidal and \(\text{sp}^3\text{d}^2\)
4. Trigonal bipyramidal and \(\text{d}^2\text{sp}^3\)
1. Square pyramidal and \(\text{sp}^3\text{d}^2\)
2. Square pyramidal and \(\text{d}^2\text{sp}^3\)
3. Trigonal bipyramidal and \(\text{sp}^3\text{d}^2\)
4. Trigonal bipyramidal and \(\text{d}^2\text{sp}^3\)
Subtopic: V.S.E.P.R & V.B.T |
72%
Level 2: 60%+
NEET - 2024
Hints
Match List-II with List-II :
Choose the correct answer from the options given below:
1. A-I, B-II, C-III, D-IV
2. A-IV, B-III, C-II, D-I
3. A-I, B-IV, C-II, D-III
4. A-IV, B-I, C-II, D-III
| List-I (Vitamins) | List-II (Deficiency/other name/ property) | ||
| A. | Vitamin K | I. | RBC deficient in haemoglobin |
| B. | Vitamin \(\text{B}_{12}\) | II. | Bleeding gums |
| C. | Vitamin C | III. | Thiamine |
| D. | Vitamin \(\text{B}_1\) | IV. | Fat soluble |
1. A-I, B-II, C-III, D-IV
2. A-IV, B-III, C-II, D-I
3. A-I, B-IV, C-II, D-III
4. A-IV, B-I, C-II, D-III
Subtopic: Vitamins, Hormones & Enzymes |
79%
Level 2: 60%+
NEET - 2024
Hints
Match List-I with List-II:
Choose the correct answer from the options given below:
| List-I (IUPAC official name) |
List-II (IUPAC Symbol) |
||
| A. | Mendelevium | I. | Mt |
| B. | Meitnerium | II. | Mc |
| C. | Moscovium | III. | No |
| D. | Nobelium | IV. | Md |
Choose the correct answer from the options given below:
| 1. | A-III, B-I, C-II, D-IV | 2. | A-IV, B-II, C-I, D-III |
| 3. | A-IV, B-I, C-II, D-III | 4. | A-I, B-IV, C-II, D-III |
Subtopic: Modern Periodic Table & Periodicity |
92%
Level 1: 80%+
NEET - 2024
Hints
Effective collisions are known to possess:
A: Energy greater than the threshold energy.
B: Breaking of old bonds in the reactant.
C: Formation of a new bond in the product.
D: High activation energy.
E: Proper orientation.
Choose the correct answer from the options given below:
A: Energy greater than the threshold energy.
B: Breaking of old bonds in the reactant.
C: Formation of a new bond in the product.
D: High activation energy.
E: Proper orientation.
Choose the correct answer from the options given below:
| 1. | A, B, C, D only | 2. | A, B, C, E only |
| 3. | A, C, D, E only | 4. | B, C, D, E only |
Subtopic: Arrhenius Equation |
72%
Level 2: 60%+
NEET - 2024
Hints
\(\text{CCl}_2\text{F}_2\) is one of the most common haloalkanes used in industries. The reaction through which it is manufactured from tetrachloromethane is called:
| 1. | Finkelstein reaction | 2. | Sandmeyer's reaction |
| 3. | Swarts reaction | 4. | Wurtz-Fittig reaction |
Subtopic: Chemical Properties |
78%
Level 2: 60%+
NEET - 2024
Hints
Subtopic: Name Reaction |
Level 3: 35%-60%
NEET - 2024
Hints
The number of moles of \(\mathrm{MnO}_4^{-}\) being reduced to \(\mathrm{Mn}^{2+}\) under acidic conditions by \(4.517 \times 10^{24}\) electrons are:
| 1. | 1.5 moles | 2. | 7.5 moles |
| 3. | 2.5 moles | 4. | 5.0 moles |
Subtopic: Chemistry of Mn and Cr Compounds |
50%
Level 3: 35%-60%
NEET - 2024
Hints
Which of the following is the most preferred method for preparing pure alkyl chlorides from alcohols?
1. \(\mathrm{{R}-{OH}+{HCl} \xrightarrow{{ZnCl}_2} {R}-{Cl}+{H}_2 {O}}\)
2. \(\mathrm{{R}-{OH}+{PCl}_5 → {R}-{Cl}+{POCl}_3+{HCl}}\)
3. \(\mathrm{{R}-{OH}+{SOCl}_2 → {R}-{Cl}+{SO}_2+{HCl}}\)
4. \(\mathrm{{R}-{OH}+{PCl}_3 → {R}-{Cl}+{H}_3 {PO}_3}\)
1. \(\mathrm{{R}-{OH}+{HCl} \xrightarrow{{ZnCl}_2} {R}-{Cl}+{H}_2 {O}}\)
2. \(\mathrm{{R}-{OH}+{PCl}_5 → {R}-{Cl}+{POCl}_3+{HCl}}\)
3. \(\mathrm{{R}-{OH}+{SOCl}_2 → {R}-{Cl}+{SO}_2+{HCl}}\)
4. \(\mathrm{{R}-{OH}+{PCl}_3 → {R}-{Cl}+{H}_3 {PO}_3}\)
Subtopic: Introduction and Physical Properties |
84%
Level 1: 80%+
NEET - 2024
Hints
In salt analysis, group V radicals \(\mathrm{(Ba^{2+}, Ca^{2+} ~and ~Sr^{2+} )}\) are precipitated as their carbonates by adding solid \(\mathrm{NH_4Cl}\) and excess of \(\mathrm{NH_4OH}\) solution followed by solid \(\mathrm{(NH_4)_2CO_3}\)
Choose the correct reagent used for the confirmation of \(\mathrm{Ca^{2+}}\) ion from the following:
Choose the correct reagent used for the confirmation of \(\mathrm{Ca^{2+}}\) ion from the following:
| 1. | Ammonium sulphate | 2. | Potassium chromate |
| 3. | Ammonium oxalate | 4. | Ammonium nitrate |
Subtopic: Detection of Cations |
53%
Level 3: 35%-60%
NEET - 2024
Hints
Subtopic: Alkanes, Alkenes and Alkynes - Chemical Properties |
67%
Level 2: 60%+
NEET - 2024
Hints
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