Q57.The total number of monobromo derivatives formed by the alkanes with molecular formula C5H12 is (excluding stereo isomers)
What This Question Tests
This question is a straightforward application of the Rf value formula in paper chromatography. It requires calculating the Rf values for two substances and then finding their ratio, testing basic understanding of chromatographic principles.
Concepts Tested
Formulas Used
Rf = (distance travelled by substance) / (distance travelled by solvent front)
📚 NCERT Sections This Tests
5.12 — Write All The Geometrical Isomers Of [Pt(Nh3)(Br)(Cl)(Py)] And How Many Of
Chemistry Class 11 · Chapter 5
5.12 Write all the geometrical isomers of [Pt(NH3)(Br)(Cl)(py)] and how many of these will exhibit optical isomers?
6.21 — Primary Alkyl Halide C4H9Br (A) Reacted With Alcoholic Koh To Give Compound (B).
Chemistry Class 12 · Chapter 6
6.21 Primary alkyl halide C4H9Br (a) reacted with alcoholic KOH to give compound (b). Compound (b) is reacted with HBr to give (c) which is an isomer of (a). When (a) is reacted with sodium metal it gives compound (d), C8H18 which is different from the compound formed when n-butyl bromide is reacted with sodium. Give the structural formula of (a) and write the equations for all the reactions.
3.23 — The Rate Constant For The Decomposition Of Hydrocarbons Is 2.418 × 10–5S–1
Chemistry Class 11 · Chapter 3
3.23 The rate constant for the decomposition of hydrocarbons is 2.418 × 10–5s–1 at 546 K. If the energy of activation is 179.9 kJ/mol, what will be the value of pre-exponential factor.
📋 Question Details
- Chapter
- Surface Chemistry
- Topic
- Paper chromatography and Rf value
- Year
- 2022
- Shift
- 25 Jul Shift 2
- Q Number
- Q57
- Type
- Numerical
- NCERT Ref
- Class 11 Chemistry Ch 12: Organic Chemistry - Some Basic Principles & Techniques (for separation methods)
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