JEE-MAIN SERIES Chemistry
Radioactivity
1 previous year questions.
Volume: 1 Ques
Yield: Medium
High-Yield Trend
1
2026 Chapter Questions 1 MCQs
01
PYQ 2026
medium
chemistry ID: jee-main
The half-life of radioactive isotope Zn is 245 days. Find the time after which activity of Zn sample remains 75% of its initial value.
About Radioactivity - JEE-MAIN
Radioactivity is a vital chapter for JEE-MAIN aspirants. Mastering the concepts covered in this chapter is essential for securing a top rank.
By rigorously practicing the previous year questions associated with this chapter, you can identify high-yield topics, understand the examiner's perspective, and boost your confidence during the actual exam.
Frequently Asked Questions
Why focus on Radioactivity PYQs?
Analyzing PYQs for this specific chapter reveals the most frequently tested concepts and the typical complexity of questions, allowing you to tailor your study plan efficiently.
How to best use this analysis?
Review the topic breakdown to see which sub-topics within Radioactivity carry the most weight. Then, tackle the questions iteratively to solidify your understanding.