Category: Stoichiometry

A. Recycling in a process stream helps in utilising the valuable reactants to the maximum with
minimum loss of reactants
B. The ratio of the quantity of a reactant present in the reactor feed of a recycling operation to the
quantity of the same reactant entering the process as fresh feed is called combined feed ratio
C. Recycling in a process does not help in getting higher extent of reaction
D. Recycling is exemplified by refluxing back a part of the distillate to the distillation column to
maintain the quantity of liquid within the column

A. Reduced by the addition of acid oxides
B. Increased by the addition of acid oxides
C. Not affected by the addition of acid oxides
D. Always less than 1000°C

A. Remain unaltered
B. Increase nine fold
C. Increase three fold
D. Decrease three fold

A. 1 atm absolute pressure & 0°C
B. 760 mm Hg gauge pressure & 0°C
C. 760 torr & 15°C
D. 101.325 KPa gauge pressure & 0°C

A. Quartz
B. Cristobalite
C. Tridymite
D. All have the same specific gravity

A. 2
B. 1
C. 3
D. unpredictable

A. Exhibits positive deviation from Raoult’s law
B. Exhibits negative deviation from Raoult’s law
C. Obeys Raoult’s law
D. May exhibit either positive or negative deviation from Raoult’s law

A. 10%
B. 5%
C. 18.18%
D. 20%

A. Not required to resist the corrosive action of basic slag
B. Not subjected to fluctuation in temperature
C. Used for raising & maintaining high temperature
D. Both B. and C.

A. Decrease in mean free path
B. Increased collision rate among molecules
C. Increase in molecular attraction
D. Increase in average molecular speed