Who discovered the atom bomb?
1). Madam Curie
2). Pierre Curie
3). Otto Hahn
4). Albert Einstein
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1. What is the element required for solar energy conversion
2. Which of the following State has become India's first carbon free State?
4. Name two elements that find wide application in transistor industry.
5. Formation of ozone hole is maximum over
6. Which one of the following is used as a sowing agent in the preparation of soft drinks?
7. Which of the following is a super cooled liquid ?
8. Diamond is harder than graphite because of
9. The 'solid waste' is also known as
10. Two elements which can form a large number of compounds are