Wicks absorb oil due to
Surface tension
Viscosity
Capilarity
Cohesive force
On the surface , the ______________ of the liquid layer increases with the increasing speed .
Metals
Non-metals
Metalloid
None of these
It is due to ________________ that a blade or a pin floats on water if it is placed very carefully .
Iron rod
Sulphur
Coal piece
Wood
The basis of capillarity exist between the liquid molecules and molecules of substance made up of a vessel
Iron
Silver
Chlorine
Arsenic
The basis of capillarity exist between the liquid molecules and the molecules of substance made up of vessel is
Bismuth
Tungsten
Farmers keeping there field ploughed for
Sodium
Potassium
Calcium
Magnesium
The reason for the capability of motion of liquid is
Sliding tendency of molecules
Potential energy of the molecule .
Closely packing of molecules .
Surface pressure of the molecules
Surface tension is the ______________ force between the molecules .
Cohesive
Adhesive
Repulsive
Viscous
Sodium metal is stored in-
Water
Alcohol
Kerosene
Ether
The speed of a liquid layer flowing nearer to suface is
Red
Green
Yellow
Dark blue