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.Management Sciences
Category: Liquids and Solids
Rising of a wetting liquid in a capillary tube is due to__________________?
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A. Surface tension
B. Cohesive forces
C. Adhesive forces
D. viscosity
If a physical and chemical change takes place at a constant pressure then the heat change during the process is called__________________?
A. Heat of transition
B. Heat of fusion
C. Enthalpy change
D. All of above
Forces of attraction which may be present between all kinds of atoms and molecules are _____________________?
A. intramolecular
B. intermolecular
C. van der Waal
D. Dipole-induced dipole
The number amino acid units for each turn of helix on average are____________________?
A. 21
B. 23
C. 25
D. 27
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
The conversion of vapours back into their liquid state is called__________________?
A. crystallization
B. evaporization
C. vaporization
D. condensation
Formation of vapours from the surface of a liquid is called________________?
A. vapourization
B. evaporation
C. condensation
D. cracking
The number of formula units in 29.25g of common salt_________________?
A. 6.022 x 1023
B. 3.01 x 1023
C. 2 x NA
D. 4 x 6.022 x 1023
The pressure during the molar heat of fusion is kept________________?
A. 0 atmosphere
B. one atmosphere
C. 2 atmosphere
D. 10 atmosphere
Crystallites are present in_________________?
A. crystalline solids
B. amorphous solids
C. liquid crystals
D. all of the above
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