Multilingual learning is ready for competitive exam preparation.
Permanent question page

Chemistry Gk question with answer

Read, practise, and share this question using its permanent link.

Question #6,501
Chemistry Gk हिन्दी MCQ

Q.हाइड्रोजन स्पेक्ट्रम की व्याख्या सर्वप्रथम किसने की थी?