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Catalytic properties and interstitial compounds

27 questions on Catalytic properties and interstitial compounds from the d- and f-Block Elements chapter: 5 NEET level, 11 JEE Main, 11 JEE Advanced. Each one opens with its answer and solution.

Practice this topic All d- and f-Block Elements topics

In the industrial Haber process for ammonia, the usual catalyst is NEET level
The catalyst used in the contact process for the manufacture of sulphuric acid is NEET level
Which statement about interstitial compounds of transition metals is correct? NEET level
A Ziegler-Natta catalyst, used for low-pressure polymerisation of ethene, is a combination of NEET level
Finely divided nickel is used industrially as a catalyst for NEET level
In the contact process, 2SO2 + O2 -> 2SO3 over a V2O5 catalyst with excess O2. If 25.6 g of SO2 is converted with an overall yield of 90%, calculate the mass of... JEE Main level
In the contact process the catalyst acts by the steps V2O5 + SO2 -> V2O4 + SO3 and 2V2O4 + O2 -> 2V2O5. The oxidation state of vanadium in the intermediate is JEE Main level
Which of the following is an interstitial compound? JEE Main level
In the hydrogenation of an alkene over a finely divided Pd or Ni surface, the first essential step is JEE Main level
Assertion (A): Addition of molybdenum increases the catalytic efficiency of iron in the Haber process. Reason (R): A promoter is itself the main catalyst for th... JEE Main level
A sample of wustite has the formula Fe_0.95O, with Fe present as Fe^2+ and Fe^3+ only. The percentage of the iron present as Fe^3+ is JEE Main level
In a three-way catalytic converter (Pt-Rh), the reaction 2NO + 2CO -> N2 + 2CO2 occurs. When 6 mol of NO is completely converted with excess CO, the total moles... JEE Main level
Match the industrial process in List I with the catalyst in List II. List I: (P) Haber process, (Q) Contact process, (R) Ostwald process, (S) Hydrogenation of o... JEE Main level
Select ALL correct statements about interstitial compounds. JEE Main level
Select ALL correct catalyst-process pairs. JEE Main level
Select ALL properties of transition metals that contribute to their catalytic activity. JEE Main level
The reaction 2I^- + S2O8^2- -> I2 + 2SO4^2- is catalysed by Fe^3+. Given E deg(Fe^3+/Fe^2+) = +0.77 V, E deg(I2/I^-) = +0.54 V and E deg(S2O8^2-/SO4^2-) = +2.01... JEE Advanced level
In the Ostwald process, 4NH3 + 5O2 -> 4NO + 6H2O over Pt-Rh is followed by 2NO + O2 -> 2NO2 and 3NO2 + H2O -> 2HNO3 + NO with the NO recycled. If 17 g of NH3 gi... JEE Advanced level
Palladium absorbs hydrogen to give the non-stoichiometric interstitial hydride PdH_0.6 (Pd = 106, H = 1). The mass percentage of hydrogen in this compound is cl... JEE Advanced level
Which statement correctly explains why interstitial carbides such as WC are harder and have much higher melting points than tungsten metal, while still conducti... JEE Advanced level
Leaded petrol must not be used in a car fitted with a Pt-Rh catalytic converter. This is because JEE Advanced level
In the Wacker process PdCl2 and CuCl2 catalyse the oxidation of ethene by O2 in water. The steps are C2H4 + PdCl2 + H2O -> CH3CHO + Pd + 2HCl, Pd + 2CuCl2 -> Pd... JEE Advanced level
In the reaction 2MnO4^- + 5C2O4^2- + 16H+ -> 2Mn^2+ + 10CO2 + 8H2O in acidic medium, the initial rate is slow but increases as the reaction proceeds. The autoca... JEE Advanced level
Select ALL correct statements about the oxidation of SO2 in the contact process using V2O5. JEE Advanced level
Select ALL correct statements about a Pt-Rh-Pd three-way catalytic converter. JEE Advanced level
Select ALL correct statements about titanium carbide, TiC, and similar interstitial compounds. JEE Advanced level
Select ALL examples of homogeneous catalysis. JEE Advanced level