ASSERTION (A): Iron surphate sorution can be srored in a copper pot. REASON(R): r
copper it -o.. reactive than iron. so displacemenr reaction cannot be done.
a) Both the assertion (A) and reason(R) are true and reason (R) is the correcr esplanation of assertion (A).
b) Both assertion (A) and reason(R) are true but reason(R) is not the correct explanation of assertion (A).
c) Assertion (A) is true but reason(R) is false. d) Assertion (A) is false but reason(R) is true.
Answers
Explanation:
At the age of twenty-two, a former ‘scout of the year’ excited the scientific world with a new theory on how cells work. Richard H. Ebright and his college room-mate explained the theory in an article in the Proceedings of the National Academy of Science.
It was the first time this important scientific journal had ever published the work of college students. In sports, that would be like making the big leagues at the age of fifteen and hitting a home run your first time at bat*. For Richard Ebright, it was the first in a long string of achievements in science and other fields. And it all started with butterflies.
An only child, Ebright grew up north of Reading, Pennsylvania. “There wasn’t much I could do there,” he said. “I certainly couldn’t play football or baseball with a team of one. But there was one thing I could do — collect things.”
So he did, and did he ever! Beginning in kindergarten, Ebright collected butterflies with the same determination that has marked all his activities. He also collected rocks, fossils, and coins. He became an eager astronomer, too, sometimes star-gazing all night.