JKSSB Mock Tests

Which scientist discovered the concept of atomic number through X-ray spectra in 1913?

A. AEB de Chancourtois
B. Dmitri Mendeleev
C. Henry Moseley
D. RA Millikan
Answer: Option C
Solution (By JKSSB Mock Tests Team)
Henry Moseley's work proved that atomic number, rather than atomic mass, is the fundamental property for organizing the periodic table.
This Question Belongs to: General science Chemistry set 1
Previous Next

Target SSC, Railway, UPSC & JKSSB Exams

Welcome to JKSSB Mock Tests's comprehensive question bank. Practicing objective multiple-choice questions (MCQs) on topics like Chemistry set 1 is essential for clearing high-competition exams such as SSC CGL, CHSL, Railway RRB NTPC, UPSC Prelims, and JKSSB.

The solution provided above gives you the exact logical breakdown needed to handle similar queries in the actual exam environment. To maximize your score, we recommend solving the related questions provided on this page and taking our free randomized mock tests to evaluate your time management skills.

Frequently Asked Questions

Yes, the concepts covered in General science are highly relevant and repeatedly asked in SSC (CGL, MTS, CHSL), Railway (RRB NTPC, ALP), UPSC, and state PSC exams like JKSSB.

After reading the direct solution, try to understand the core concept behind it. Use our platform to practice similar questions from the same topic to reinforce your memory and improve accuracy.