Chemistry(General Knowledge ) Questions and Answers
Explanation:-
Answer: Option A. -> Greenhouse effectModern global warming is the result of an increase in magnitude of the so-called greenhouse effect, a warming of Earth's surface and lower atmosphere caused by the presence of water vapour, carbon dioxide, methane, nitrous oxides, and other greenhouse gases.
Explanation:-
Answer: Option B. -> AndersonIn 1932 Carl Anderson, a young professor at the California Institute of Technology in the US, was studying showers of cosmic particles in a cloud chamber and saw a track left by "something positively charged, and with the same mass as an electron".
Explanation:-
Answer: Option C. -> X-raysWhen cathode rays strike a solid target of high atomic weight and high melting point such as tungsten, molybdenum, etc, they give rise to a highly penetrating radiation called the X-rays (LIT Physics by Dr. P.K Agarwal).
Explanation:-
Answer: Option B. -> Spin quantum numberSpin quantum number is the is the fourth quantum number that differentiates two electrons in the same orbital. The Pauli exclusion principle states that “no two electrons in an atom can have the same four quantum numbers. This means that no two electrons can have the same state in an atom. Each electron must have a different spin or occupy a different shell from any other.