1.biological catalyst
A. amino acid
B. glucose
C. nitrogen atom
D. enzymes
Option”D” is correct
2.Which substance poisons the Pt catalyst in the contact method of manufacturing sulfuric acid?
A. Sulphur
B. arsenic oxide
C. CO₂
D. arsenic sulfide
Option”D” is correct
3.Which of the following types of catalysts are best
A. transition elements
B. alkali metals
C. alkali metals
D. colored metal
Option”A” is correct
4.The catalyst used in the hydrogenation of oils is
A. Fe
B. In
C. Mo
D. Pt
Option”B” is correct
5.Sis is used as a catalyst in the chamber process –
A. oxides of nitrogen
B. platinum
C. nickel
D. MnO₂
Option”A” is correct
6.Which of the following substances act as inhibitor for iron (Fe) catalyst in Haber’s process of ammonia?
A. CO₂
C. H₂
Option”D” is correct
7.Which enzyme converts glucose to alcohol
A. james
B. events
C. maltes`
D. diastat
Option”A” is correct
8.When potassium chlorate is heated, it decomposes into potassium chloride and oxygen. When manganese dioxide is added to it, the reaction becomes faster. this is due to –
A. Manganese dioxide decomposes to give oxygen.
B. Manganese dioxide produces good contact.
C. Manganese dioxide produces good contact.
D. Manganese dioxide acts as a catalyst.
Option”D” is correct
9.Used as a catalyst in the contact method of making sulfuric acid
A. iron powder
B. platinum powder
C. oxides of nitrogen
D. nickel metal
Option”B” is correct
10.Used as a catalyst in Deacon’s method of making chlorine gas
A. oxides of nitrogen
B. hot alumina
C. cupric chloride
D. iron powder
Option”C” is correct