Related Questions

If a solution of eutectic composition is cooled, __________ reaching the eutectic temperature.
A The solvent begins to freeze out even before
B It will undergo no change until
C It will not solidify even on
D None of these
The temperature at the eutectic point of the system is the __________ temperature that can be attained in the system.
A Lowest
B Highest
C Average
D None of these
In an eutectic system, two elements are completely
A Soluble in solid state
B Insoluble in liquid state
C Insoluble in both solid & liquid state
D Soluble in liquid state
How many phases are present at eutectic point?
A 1
B 2
C 3
D Unpredictable
Eutectoid reaction for iron-carbon system occurs at a temperature of __________ °C.
A 597
B 959
C 1147
D 1493
A chemical reaction occurs when the energy of the reacting molecules is __________ the activation energy of the reaction.
A Less than
B Equal to
C More than
D Equal to or more than
A chemical reaction occurs, when the energy of the reacting molecules is __________ the activation energy of reaction.
A Less than
B Equal to
C More than
D Equal to or more than
Overall rate of reaction in a heterogenous catalytic reaction depends upon the mass and energy transfer from the fluid to solid surface and its rate of reaction is usually __________ the concentration of catalyst, if it does not entail a chain mechanism.
A Proportional to
B Independent of
C Inversely proportional to
D Proportional to the square of
A reaction in which one of the products of reaction acts as a catalyst is called a/an __________ reaction.
A Catalytic
B Autocatalytic
C Photochemical
D None of these
The reaction in which one of the products of reaction acts as a catalyst is called a/an __________ reaction.
A Biochemical
B Photochemical
C Catalytic
D Autocatalytic

Next steps