TLS 
Triyambak Life Sciences

Nurturing Life Sciences

TLS Online

Nurturing Life Sciences

Store
Login

Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 21404
TLS Online TPP Program

#Question id: 20202


The correct order of number of unpaired electrons in the ions Cu2+, Ni2+, Fe3+ and Cr3+ is

#XL - P Chemistry
  1. Cu2+ > Ni2+ > Cr3+ > Fe3+ 
  2. Cr3+ > Fe2+ > Ni2+ > Cu2+
  3. Fe3+ > Cr3+ > Cu2+ > Ni2+
  4. Fe3+ > Cr3+ > Ni2+ > Cu2+.

Answer:- Option(s): 3


To access the video solutions, Please subscribe TPP program.

Subscribe Now 
More Questions
TLS Online TPP Program

#Question id: 11372

#XL - S Microbiology

Which of the following use light energy to synthesize organic compounds from CO2?

TLS Online TPP Program

#Question id: 11373

#XL - S Microbiology

Which of the following obtain energy by oxidizing inorganic substances; energy that is used, in part, to fix CO2?

TLS Online TPP Program

#Question id: 11374

#XL - S Microbiology

Which of the following use light energy to generate ATP, but do not release oxygen?

TLS Online TPP Program

#Question id: 11375

#XL - T Zoology

Productivity per day (NPP per ground area per day) four different ecosystems

TLS Online TPP Program

#Question id: 11378

#XL - R Botany

Which of the following set of conditions will qualify a species to be considered as critical endangered (EN) as per IUCN criteria?

TLS Online TPP Program

#Question id: 11380

#XL - T Zoology

Which of the following is/are NOT valid explanation(s) for the observed pattern of species richness?

TLS Triyambak Life Sciences Nurturing Life Sciences
TLS Android APP TLS IOS APP

Company

  • About us
  • Careers
  • Terms of service
  • Privacy policy

Help & Support

  • User Guidelines
  • Refund Policy

Products

  • TLS APP
  • TPP APP

Contact Us

117/429-4 Q Block, behind Hotel DNG Grand, Sharda Nagar, Kanpur,
Uttar Pradesh 208025
India
Phone: +91 9919149001, +917007912133
Email: info@triyambak.org

© 2026 Copyright Triyambak Life Sciences Pvt Ltd. All Rights Reserved