Which of the following is NOT a radioactive element?
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Which of the following compounds has a double bond?
Which of the following elements has a total of 3 shells with 8 electrons in the last orbit?
Bridgmanite is
Who wrote the book "Five Point Someone: What Not to Do at IIT"?
Who is the first Indian cricketer to have scored a triple hundred in test cricket?
Which of the following pairs is not correctly matched?
Who awarded the Kaisar-i-Hind medal of the British to Mahatma Gandhi for his contribution to ambulance services in South Africa?