Formation of vapours from the surface of a liquid is called________________?
A. vapourization
B. evaporation
C. condensation
D. cracking
Chemistry Mcqs
Water has maximum density at __________________?
Water has maximum density at __________________?
A. 0°C
B. 2°C
C. 4°C
D. 100°C
The quantity of heat required to convert one mole of liquid into its vapours at its boiling point is called molar heat of__________________?
The quantity of heat required to convert one mole of liquid into its vapours at its boiling point is called molar heat of__________________?
A. vaporization
B. evaporation
C. crystallization
D. sublimation
Which is true about Zn-Cu galvanic cell ?
Which is true about Zn-Cu galvanic cell ?
A. Reduction occurs at anode
B. K+ ion transfer from salt bridge to left beaker of ZnSO4
C. Oxidation occurs at cathode
D. Anode is negatively charged
Stronger is the oxidizing agent greater is the___________________?
Stronger is the oxidizing agent greater is the___________________?
A. Oxidation potential
B. Redox potential
C. e.m.f of cell
D. standard reduction potential
18g glucose is dissolved in 90g water the relative lowering in vapour pressure is equal to ___________________?
18g glucose is dissolved in 90g water the relative lowering in vapour pressure is equal to ___________________?
A. 8
B. 5.1
C. 6
D. one/fifty one
For which system does the equilibrium constant Kc has unit of (concentration)-1__________________?
For which system does the equilibrium constant Kc has unit of (concentration)-1__________________?
A. N2+3H2 2NH3
B. H2+I2 2HI
C. 2NO2 N2H4
D. PCI5 PCI3+CI2
Atomic radius can be determined by_________________?
Atomic radius can be determined by_________________?
A. X – ray diffraction
B. Spectrophotometer
C. Optical microscope
D. Electron microscope
Bohrs model is contradicted by__________________?
Bohrs model is contradicted by__________________?
A. Plancks theory
B. Dual nature of matter
C. Heisenbergs uncertainty principle
D. All of these
Which of the following is pseudo solid_____________________?
Which of the following is pseudo solid_____________________?
A. CaF2
B. NaCl
C. Glass
D. Diamond