UrbanPro
Login Ask & Answer Success Stories Paid Courses Free Classes Tuition & Classes Fees Write a Review All Categories Help Center
Post your Learning Need Signup as a Tutor
✕

Popular Cities

Bangalore

Hyderabad

Delhi

Mumbai

Chennai

Pune

Kolkata

Gurgaon

Ahmedabad

Jaipur

Noida

✕

Take Class 12 Tuition from the Best Tutors

  • Affordable fees
  • 1-1 or Group class
  • Flexible Timings
  • Verified Tutors

Book a Free Demo

Class 12 Tuition > Learn Chemistry > In which of the following options order of arrangement...
✕

Search in

In which of the following options order of arrangement does not agree with the variation of property indicated against it? (a) Al3+ < Mg2+ < Na+ < F– (increasing ionic size) (b) B < C < N < O (increasing first ionization enthalpy) (c) I < Br < Cl < F (increasing electron gain enthalpy) (d) Li < Na < K < Rb (increasing metallic radius)

Asked by Last Modified  

3 Answers

Learn Chemistry +1 Classification of Elements and Periodicity in Properties

Follow 3
Answer

Please enter your answer

Ans. C...Because Electron gain enthalpy of Cl is greater than F
Comments
Dislike Bookmark

B.Sc, M.Sc, Ph.D, MBA (Finance and Marketing)

Answer is C. Fluorine due to small size and high no. Of electrons in it's outer most shell slightly repel the electrons. So Cl has highest electron gain enthalpy. Moreover electron gain enthalpy always written with negative sign as it is energy released. So, high magnitude let's say (-10 for chlorine)...
read more
Answer is C. Fluorine due to small size and high no. Of electrons in it's outer most shell slightly repel the electrons. So Cl has highest electron gain enthalpy. Moreover electron gain enthalpy always written with negative sign as it is energy released. So, high magnitude let's say (-10 for chlorine) with negative sign means lower value when compared with (-2 for iodine). So the order should also be reversed read less
Comments
Dislike Bookmark

Specialist in Chemistry.

Option b&c
Comments
Dislike Bookmark

View 1 more Answers

Related Questions

What is the fee for a student going to class 11 for JEE coaching?
fees for JEE coaching (11th or 12th) its depends upon which coaching your joining like if u will go KOTA and your joining RESONANCE, BANSAL, ALLEN, MOTION, VIBRANT, CAREER POINT almost all coaching will...
Saddam
0 0
6
How can one do well in class 11 and 12 (CBSE) without coaching?
Without coaching you have to ref NCERT books. Go through mathematical and science concepts first, learn the formulae and then go for attmpting different MCQ's. By having sufficient practise you will gain confidenece. Best Luck
User
0 0
6
How will you convert benzene into
(i) p-nitrobromobenzene (ii) m-nitrobromobenzene
First do bromination with FeBr3/ Br2, you will get bromo benzene,then nitration with concern HNO3/ H2SO4( nitrating reagent)
Raj
0 0
5
Will the JEE coaching fulfill the requirement for the class 12?
Yes it will. Since the concepts are made stronger it helps. But the student should also have the time management skill to prepare the answers to answer the way CBSE expects
Millennium
0 0
5
Is coaching needed for class 12 Economics?
It depends on you choice if you have need then join if not then it is not necessary for you.
Bhakti
0 0
7

Now ask question in any of the 1000+ Categories, and get Answers from Tutors and Trainers on UrbanPro.com

Ask a Question

Related Lessons

NEET : a possible dream
When I was in class Xi , I wonder seeing a doctor.It seems almost impossible.Its been five years from then ,I'm a final year MBBS student at CMC ,oldest medical College in whole Asia . It took me 2 years...

Dr. Hefjur Rahman

1 0
0
Redox Reactions
• OxidationOxidation is defined as the addition of oxygen/electronegative element to a substance or removal of hydrogen/ electropositive element from a substance.For example,• ReductionThe reduction...

Shubham Tomar

0 0
0
Balancing Redox Reaction
Redox reaction is an Oxidation-Reduction Reaction. Balancing a redox reaction in an essential medium requires an additional step when we finish of which involves the addition of an equal number of hydroxyl...

Dr. Nishant Khandelwal

0 0
0
Mole concept

Pooja S.

0 0
0
Isotopes-1
1) What is an Isotope? Isotopes are atoms of the same element that have different numbers of neutrons but the same number of protons and electrons. 2) What determines the atomic number of an element? A...

Jayaraj B

1 0
0

Recommended Articles

Find Class 12 Tuition near you
Class 12 Tuition in Delhi
Class 12 Tuition in Bangalore
Class 12 Tuition in Hyderabad
Class 12 Tuition in Kolkata
Class 12 Tuition in Mumbai
Class 12 Tuition in Chennai
Class 12 Tuition in Pune
Class 12 Tuition in Lucknow
Class 12 Tuition in Jaipur
Class 12 Tuition in Noida
Online Tuition Class 12

Looking for Class 12 Tuition ?

Learn from the Best Tutors on UrbanPro

Are you a Tutor or Training Institute?

Join UrbanPro Today to find students near you
X

Looking for Class 12 Tuition Classes?

The best tutors for Class 12 Tuition Classes are on UrbanPro

  • Select the best Tutor
  • Book & Attend a Free Demo
  • Pay and start Learning

Take Class 12 Tuition with the Best Tutors

The best Tutors for Class 12 Tuition Classes are on UrbanPro

This website uses cookies

We use cookies to improve user experience. Choose what cookies you allow us to use. You can read more about our Cookie Policy in our Privacy Policy

Accept All
Decline All

UrbanPro.com is India's largest network of most trusted tutors and institutes. Over 55 lakh students rely on UrbanPro.com, to fulfill their learning requirements across 1,000+ categories. Using UrbanPro.com, parents, and students can compare multiple Tutors and Institutes and choose the one that best suits their requirements. More than 7.5 lakh verified Tutors and Institutes are helping millions of students every day and growing their tutoring business on UrbanPro.com. Whether you are looking for a tutor to learn mathematics, a German language trainer to brush up your German language skills or an institute to upgrade your IT skills, we have got the best selection of Tutors and Training Institutes for you. Read more

ThinkVidya Learning Pvt Ltd © 2010-2025 All Rights Reserved