Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
JEE Advanced 2008Paper 1
Exam
JEE Advanced
Year
2008
Paper
Paper 1
Subject
Chemistry
Chapter
Alcohols Phenols and Ethers

JEE Advanced 2008 · Paper 1 · Chemistry · Alcohols Phenols and Ethers

Paragraph: In the following reaction sequence, product I . J and L...

Paragraph: In the following reaction sequence, product I.JI . J and LL are formed. K represent a reagentParagraph: In the following reaction sequence, product I . J and L are formed. K represent a reagent Question: The
Question: The structure of the product II isParagraph: In the following reaction sequence, product I . J and L are formed. K represent a reagent Question: The

Options

  1. AThe equivalent weight of which of the following is maximum? (Given: atomic weights Na=23, Mn=55, Cr=52, ~K=19, O=16,
  2. BThe equivalent weight of which of the following is maximum? (Given: atomic weights Na=23, Mn=55, Cr=52, ~K=19, O=16,
  3. CThe equivalent weight of which of the following is maximum? (Given: atomic weights Na=23, Mn=55, Cr=52, ~K=19, O=16,
  4. DThe equivalent weight of which of the following is maximum? (Given: atomic weights Na=23, Mn=55, Cr=52, ~K=19, O=16,

Correct answer

D. The equivalent weight of which of the following is maximum? (Given: atomic weights Na=23, Mn=55, Cr=52, ~K=19, O=16,

Step-by-step solution

NaBH4\mathrm{NaBH}_4 reduces −CHO-\mathrm{CHO} selectively into −CH2OH-\mathrm{CH}_2 \mathrm{OH}, which is further converted into corresponding bromide by PBr3\mathrm{PBr}_3 without affecting the triple bond.
Practice Alcohols Phenols and Ethers on Quantrex Academy →

More from Alcohols Phenols and Ethers

Considering LiBH_4 reduces an ester group to the corresponding alcohol and does not… JEE Advanced 2026The major product of which of the following reaction is not obtained by rearrangement… JEE Main 2026Consider the following reaction. Statement I : In the above reaction, product formed will… JEE Main 2026Consider the following sequence of reactions The major product P is: JEE Main 2026Arrange the following compounds according to increasing order of boiling points.… JEE Main 20264.7 g of phenol is heated with Zn to give product X. If this reaction goes to 60\%… JEE Main 2026Consider compounds A, B and C with following structural formulae A = CH _3 - CH _2 - CH… JEE Main 2026One mole of phenol is treated with dilute HNO _3 at 298 K to give a mixture of products.… JEE Main 2026 Full Alcohols Phenols and Ethers list All JEE Advanced PYQs