The phenomenon in which a compound exists in two or more crystalline forms is called ________________?
A. Isomorphism
B. Polymorphism
C. Anisotropy
D. Allotropy
Chemistry Mcqs
Boiling points of hydrocarbons increase with the increase in number of carbon atoms. It is mainly due to_________________?
Boiling points of hydrocarbons increase with the increase in number of carbon atoms. It is mainly due to_________________?
A. More strength of H-bonding
B. More strength of London forces
C. Less polarizability
D. All of the above
Amorphous substances posses_________________?
Amorphous substances posses_________________?
A. No definite geometry
B. No definite heat of fusion
C. No sharp melting points
D. All of the above
A solid may be made up of_________________?
A solid may be made up of_________________?
A. Atoms
B. Ions
C. Molecules
D. A, B, and C
If we provide very high amount of heat to a liquid its boiling point will__________________?
If we provide very high amount of heat to a liquid its boiling point will__________________?
A. increase
B. remains constant
C. decrease
D. there will be no boiling
Which one of the following has highest volatility_________________?
Which one of the following has highest volatility_________________?
A. Diethyl ether
B. Ethyl alcohol
C. Water
D. Ethylene glycol
During which process empty spaces between particles become minimum ?
During which process empty spaces between particles become minimum ?
A. ionization
B. condensation
C. fusion
D. evaporation
Table salt crystallizes with a______________________?
Table salt crystallizes with a______________________?
A. Face centered cubic lattice
B. body centered cubic lattice
C. simple cubic lattice
D. othorhombic lattice
Vapour pressure is not affected by_______________?
Vapour pressure is not affected by_______________?
A. Surface area
B. temperature
C. intermolecular forces
D. atmospheric pressure
The ttractive forces between the partial positive end of one molecule and partial negative end of other molecule are called________________?
The ttractive forces between the partial positive end of one molecule and partial negative end of other molecule are called________________?
A. Dipole-dipole forces
B. Ion dipole-dipole forces
C. London dispersion forces
D. Debye forces