OnlineCBT Logo OnlineCBT
⚲
हिन्दी
OnlineCBT Logo OnlineCBT
⚲

Chemistry · PYQ NEET UG 2026

हिन्दी

Consider the following reaction, and choose the correct option.

  1. On treating compound P with saturated NaHCO3 solution, brisk effervescence is observed.
  2. Compound P can be prepared by treating benzene with anhydrous AlCl3 and CH3COCl.
  3. On treatment with bromine water, compound P gives a white precipitate.
  4. Compound P is obtained by the hydrogenation of benzoyl chloride with Pd on BaSO4.

Correct answer · Option 4

Compound P is obtained by the hydrogenation of benzoyl chloride with Pd on BaSO4.

Explanation

Etard reaction of toluene (CrO2Cl2, CS2 followed by H3O+) produces benzaldehyde (compound P). Benzaldehyde is prepared by Rosenmund reduction of benzoyl chloride using Pd/BaSO4.

Related questions

The green paramagnetic species formed by heating KMnO4 at 513 K is→Two moles of an ideal gas undergo free expansion from $10\text{ L}$ to $100\text{ L}$ at $300\text{ K}$. The values of $\Delta S_{\text{system}}$ and $\Delta S_{\text{surroundings}}$ are (R is universal gas constant)→Match the species in List I with their geometry in List II List I List II A \( \text{PCl}_5 \) I. Tetrahedral B \( \text{BrF}_5 \) II. Square Planar C \( \text{BF}_4^- \) III. Trigonal bipyramidal D \( [\text{Ni(CN)}_4]^{2-} \) IV. Square pyramidal Choose the correct answer from the options given below:→Statement-I : Heating \( \text{NaCl} \) with concentrated \( \text{H}_2\text{SO}_4 \) and \( \text{MnO}_2 \) results in oxidation of \( \text{Mn} \). Statement-II : Heating \( \text{NaI} \) with concentrated \( \text{H}_2\text{SO}_4 \) and \( \text{MnO}_2 \) results in reduction of \( \text{Mn} \). In light of the above statements, choose the most appropriate answer from the options given below:→
OnlineCBT

Our mission is "To educate students and help them excel in competitive exam preparation to the best of their potential. To impart good values in students and develop their overall exam readiness."

Useful Link
Important Pages
Courses & Practice
Contact
Address

Plot No 10, Dholigumti, Panditpura Road, Bandikui, Dausa(Raj) 303313

Contact

+91 7877547686

 E-mail

onlinecbtportal@gmail.com

 Helpline Number

+91 7877547686
Share
Click To Download
Get it on Google Play

ऐप डाउनलोड करने
के लिए Google Play पर
उपलब्ध है

Terms of Use | Privacy Policy | Cookie Policy | Disclaimer | Editorial Policy | Fact Check | Corrections | DMCA | Ad Choices

Copyright © 2026 - OnlineCBT.in. All Rights Reserved.

WhatsApp Chat