Everyday Science MCQs

5120 MCQs  (Page 169 of 512)

A limiting reactant is one which________________?
A. Is taken in lesser quantity in grams as compared to other reactants
B. Is taken in lesser quantity in volume as compared to other reactants
C. Gives the maximum amount of the product which is required
D. Gives the minimum amount of the product under consideration
A safe and more reliable method for drying the crystal is__________________?
A. Hot air currents
B. Folds of filter paper
C. Oven
D. Vacuum desiccator
A real gas obeying vander waals equation will resemble the ideal gas if_______________________?
A. Both a and b are small
B. Both a and b are large
C. A is small and b is large
D. A is large and b is small
Plasma is used in_________________?
A. Fluorescent bulb
B. Neon signs
C. Lasers
D. All of these
Bohrs model is contradicted by__________________?
A. Plancks theory
B. Dual nature of matter
C. Heisenbergs uncertainty principle
D. All of these
Atomic radius can be determined by_________________?
A. X – ray diffraction
B. Spectrophotometer
C. Optical microscope
D. Electron microscope
Stronger is the oxidizing agent greater is the___________________?
A. Oxidation potential
B. Redox potential
C. E.m.f of cell
D. Standard reduction potential