Wicks absorb oil due to
Surface tension
Viscosity
Capilarity
Cohesive force
The net resultant force, acting on the molecules on the surface is to to the _______________ direction .
upward
downward
forward
backward
The property of metals by which they can be beaten in to thin sheets is called-
Malleability
Ductility
Conduction
Expansion
The basis of capillarity exist between the liquid molecules and molecules of substance made up of a vessel
Iron
Silver
Chlorine
Arsenic
Sodium metal is stored in-
Water
Alcohol
Kerosene
Ether
Surface area is least for asubstance when it assumes ____________ shape .
Tensile strength
Density
Lustre
Hardness
On the surface , the ______________ of the liquid layer increases with the increasing speed .
Metals
Non-metals
Metalloid
None of these
Surface tension is the ______________ force between the molecules .
Cohesive
Adhesive
Repulsive
Viscous
In ___________________ substances molecules exist very close .
Sodium
Calcium
Magnesium
Potassium
The force which help the water particle to form spherical shape is
Basic oxides
Acidic oxides
Neutral oxides