OnlineCBT Logo OnlineCBT
⚲
हिन्दी
OnlineCBT Logo OnlineCBT
⚲

Chemistry · PYQ NEET UG 2019(2)

हिन्दी

The polymer that is used as a substitute for wool in making commercial fibres is

  1. A
    buna-N
  2. B
    melamine
  3. C
    nylon-6,6
  4. D
    polyacrylonitrile
View Answer & Solution

Correct answer · Option D

polyacrylonitrile

Explanation

Polyacrylonitrile (Orlon or acrilan) is used as a substitute for wool in making commercial synthetic fibres.

Related questions

The molar solubility of \( \mathrm{CaF_2} \) \( (\mathrm{K_{sp}} = 5.3 \times 10^{-11}) \) in \( 0.1 \) \( \mathrm{M} \) solution of \( \mathrm{NaF} \) will be→The density of \( 2 \) \( \mathrm{M} \) aqueous solution of \( \mathrm{NaOH} \) is \( 1.28 \) \( \mathrm{g/cm^3} \). The molality of the solution is [Given that molecular mass of \( \mathrm{NaOH} = 40 \) \( \mathrm{g\,mol^{-1}} \)]→In the following reaction, \( \text{H}_3\text{C}-\text{C}\equiv\text{CH} \xrightarrow[873\text{ K}]{\text{red hot iron tube}} \text{A} \). The number of sigma \( (\sigma) \) bonds present in the product A, is→In water saturated air, the mole fraction of water vapour is 0.02. If the total pressure of the saturated air is 1.2 atm, the partial pressure of dry air is→
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