-
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
Resources
-
Arts, Commerce & Sciences
Exams
Colleges
Upcoming Events
Resources
-
Management and Business Administration
Colleges & Courses
Predictors
-
Learn
Law Preparation
MBA Preparation
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
Exams
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
- Which is the correct statement?Option: 1 Law of triads was proposed by DobereinerOption: 2
- #Joint Entrance Examination Main
- #National Eligilibility Cum Entrance Test
- #Classification of Elements and Periodic table
- #Engineering
- #Chemistry
Which is the correct statement?
Law of triads was proposed by Dobereiner
Law of octaves was proposed by Einstein
Both
None
Answers (1)
As we have learnt
Introduction of Periodic Table -
PROUT'S HYPOTHESIS
He simply assumed that all the elements are made up of hydrogen, so we can say that
Atomic weight of elements = n (Atomic weight of one hydrogen atom)
Atomic weight of H = 1 , where n = number of hydrogen atom = 1, 2, 3,..
Drawback or Limitation:
-
Ex. Every element can not be formed by Hydrogen.
-
The atomic weights of all elements were not found as whole numbers.
Ex. Chlorine (atomic weight 35.5) and Strontium (atomic weight 87.5)
-
Law of triads was proposed by Johann Dobereiner. Law of octaves was proposed by Newlands.
Therefore, the correct option is (1)
JEE Main high-scoring chapters and topics
Study 40% syllabus and score up to 100% marks in JEE
