Zeolite catalyst
A.are crystalline alumino-silicates
B.have high activity than synthetic amorphous catalyst
C.are used in catalytic cracking of heavy vacuum gas oils
D.all of the above
A.are crystalline alumino-silicates
B.have high activity than synthetic amorphous catalyst
C.are used in catalytic cracking of heavy vacuum gas oils
D.all of the above
A.Synthesis of water by passing electric sparks through a mixture of hydrogen and oxygen
B.Neutralization of a dilute alkali solution by a small amount of a conentrated acid
C.Hydrolysis of an ester in the presence of H+
D.Darkening of silver halides in light
A.they are exothermic reactions
B.they are endothermic reactions
C.the energy of the reacting molecules exceeds the activation energy by absorption of light
D.they are reversible reactions
A.tenacity
B.dustility
C.porosity
D.malleability
A.37.57 psi suction
B.10 psi suction
C.13.757 psi suction
D.23.757 psi suction
A.56.7 x 10-9
B.1.335 x 10-12
C.4.87 x 10-8
D.0.174 x 10-8
E.0.567 x 10-4
A.8 to 15 cfm/sq ft
B.0.2 to 0.5 cfm/sq ft
C.50 to 60 cfm/sq ft
D.0.01 to 0.1 cfm/sq ft
A.temperature
B.viscosity
C.compressibility
D.surface tension
A.increases with increase in temperature
B.decreases with increase in temperature
C.remains unaffected with change in temperature
D.is greater than the viscosity of a liquid
A.its mass exceeds critical mass
B.its mass is just equal to critical mass
C.its mass is less than critical mass
D.all of these answers.