Q241: Change from one state to another state involves?
Q242: In an irregular reflection, the light rays reflect at _______?
Q243: Atom bomb is based on the principle of:
Q244: A body is in neutral equilibrium when its center of gravity _______?
Q245: Which method is used to separate components of mixture?
Q246: The process of separation of an insoluble solid from a liquid by passing it through filter paper is called?
Q247: The temperature scale which is independent of the nature of the working substance is?
Q248: From the following in which fruit vitamin C.
Q249: What was one of the first major inventions of Jabir bin Hayyan?
Q250: Which one of the following is also called Stranger Gas? Argon, Neon, Argon, Xenon