-
Engineering and Architecture
Exams
Colleges
Predictors
Resources
-
Computer Application and IT
Quick Links
Colleges
-
Pharmacy
Colleges
Resources
-
Hospitality and Tourism
Colleges
Resources
Diploma Colleges
-
Competition
Other Exams
Resources
-
School
Exams
Top Schools
Products & Resources
-
Study Abroad
Top Countries
Student Visas
-
Arts, Commerce & Sciences
Exams
Colleges
Upcoming Events
Resources
-
Management and Business Administration
Colleges & Courses
Predictors
-
Learn
Online Courses
Engineering Preparation
Medical Preparation
-
Online Courses and Certifications
Top Streams
Specializations
- Digital Marketing Certification Courses
- Cyber Security Certification Courses
- Artificial Intelligence Certification Courses
- Business Analytics Certification Courses
- Data Science Certification Courses
- Cloud Computing Certification Courses
- Machine Learning Certification Courses
- View All Certification Courses
Resources
-
Medicine and Allied Sciences
Colleges
Predictors
Resources
-
Law
Resources
Colleges
-
Animation and Design
Predictors & Articles
Colleges
Resources
-
Media, Mass Communication and Journalism
Colleges
Resources
-
Finance & Accounts
Top Courses & Careers
Colleges
Get Answers to all your Questions
- Home
- Engineering
- The following compounds have been arranged in order of their increasing thermal stabilities. Identify the correct order.
- #National Eligilibility Cum Entrance Test
- #Chemistry
- #Joint Entrance Examination Main
- #Engineering
- #Class 11
- #Classification of Elements and Periodic table
The following compounds have been arranged in order of their increasing thermal stabilities. Identify the correct order.
(I) K2CO3 (II) MgCO3 (III) CaCO3 (IV) BeCO3
I < II < III < IV
IV < II < III < I
IV < II < I < III
II < IV < III < I
Answers (1)
Periodicity trend and chemical reactivity -
The maximum chemical reactivity at the extreme left (among alkali metals) is exhibited by the loss of an electron leading to the formation of the cation.
-
Electronegativity and metallic character -
Electronegativity is inversely related to the metallic properties of elements.
- wherein
Thermal stabilities of carbonates increases in a group im moving from top to bottom. In other words, the thermal stability of oxo-salts of alkali and alkaline earth metals increase with increasing metallic character (i.e. with decreasing ionisation energies).
Therefore, Option(2) is correct.
JEE Main high-scoring chapters and topics
Study 40% syllabus and score up to 100% marks in JEE
