By which process does the smell of cooking spread to all the rooms in a house?
A. Distillation B. Diffusion C. Decomposition D. Displacement
Which of the following waves have smallest velocity in vacuum?
A. Ultraviolet B. Sound C. Infra-Red D. Micro
Which law states that “equal volumes of all gases, at the same temperature and pressure, have the same number of molecules?
A. Boyle’s law B. Charles’ law C. Gay-Lussac’s law D. Avogadro’s law
Which of the following noble gases is abundant in air?
A. Neon B. Helium C. Argon D. Methane
Which of the following noble gases is not present in atmosphere?
A. Argon B. Helium C. Radon D. Xenon
The movement of any solvent across a semipermeable membrane is called__________?
A. Osmosis B. Cataphoresis C. Electrolysis D. Electrophoresis
The process whereby energy is dissipated from the oscillating system is called__________?
A. Oscillation B. Damping C. Resonance D. None of these
Internal friction of fluid is called_________?
A. Viscosity B. Surface tension C. Resistance D. Cohesive force
What is the name of the gas used in an air conditioner?
A. Ammonia B. Nitrous oxide C. Freon D. CO2
What is the one of the other name of Vitamin “A”?
A. Riboflavin B. Ascorbic Acid C. Retinol D. Thiamin