A. Fe2O3
B. V2O5
C. SO3
D. Ag2O
Related Mcqs:
- In Bosch Process, that is used to separate the Hydrogen gas from water Gas, the catalyst is used ______?
A. Pt
B. FeO
C. Cr²O³
D. Both B&CSubmitted by: Aamir khan Hullio
- When an active metal like Al comes in contact with less active element like Cu then it produces__________________?
A. dry cell
B. galvanic cell
C. electrolytic cell
D. A and B - Which of the following produces black spots when it comes in contact with organic substances such as skin and cellulose?
A. CuSO4
B. AgNO3
C. K2MnO4
D. CH3COOHSubmitted by: Muhammad Kamal
- Which of the following is the most suitable catalyst for ammonia synthesis ?
A. Pt
B. ZnO + Cr2O3
C. Fe in fused mixture of Al2O3 + SiQ2 + MgO
D. All of the above - The addition of a catalyst to the reaction system__________________?
A. Increases the rate of forward reaction only
B. Increases the rate of reverse reaction
C. Increases the rate of forward but decreases the rate of backward reaction
D. Increases the rate of forward as well as backward reaction equally - The substances that reduces the effectiveness of a catalyst are called ___________________?
A. Promoters
B. Poisoning catalysts
C. Inhibitors
D. pro-catalysts - A catalyst can not effect__________________?
A. Products
B. Chemical equilibrium
C. Reactants
D. both A & B - Ethanal is prepared industrially by air oxidation of ethylene using palladium chloride as catalyst and _________ as promoter?
A. PdCl2
B. Cu2Cl2
C. CuCl2
D. PbCl2 - What catalyst is employed when benzene is prepared from acetylene at 70°C?
A. Cr2O3 + A2O3 + SiO2
B. Raney nickel
C. Organo-nickel
D. Ni 250 – 300°C - The product of the reaction between steam and Hydrocarbon in presence of Ni catalyst at 900°C is _____.
A. CO²+O²
B. CO+H²(water gas)
C. CO³+H²O
D. Laughing GasSubmitted by: Aamir khan Hullio