Catalysis

Q. Calculate amount of 50% H2SO4 required to decompose 25 g of marble

Q. The ionisation constant of organic acid RCOOH at 25°C is 10^-6 .The equilibrium constant of hydrolysis of RCOO- is

Q. 69. 200 ml of O3(g) decomposes in such a way that total volume of the mixture becomes 240 ml.what is the percentage decomposition of O3(g)?

Q. Choose the statements which are true among the following.

1. A catalyst reduces the rate of a reaction
2. A promoter increases the rate of a reaction
3. A poison reduces the activity of a catalyst
4. Enzymes are biocatalysts

Q. The hybridized state of Al+3 8n the complex ion formed when Alcl3 treated with aq. acid is

Q. 1.575 grams of C₂H₂O₄.xH₂O is dissolved in water and its volume is made up to 250ml. On titration, 16.68ml of this solution requires 25ml of (1/15) Normal NaOH solution for complete neutralisation.
Find x.
Explain the processes and calculations.

Q.

A catalytic poison renders the catalyst ineffective because

1. It’s preferentially adsorbed on catalyst

2. It adsorbs the molecules of reactants

3. It reacts chemically with the catalyst

4. It reacts with one reactant

Q.

In case of autocatalysis:

1. Reactant catalyzes

2. Heat produces in the reaction catalyzes

3. Product catalyzes

4. Solvent catalyzes

Q. Which of the following statements is/are correct about solid catalysts?

1. Same reactants may give different products by using different catalysts.
2. A catalyst does not change $\Delta H$ of a reaction.
3. A catalyst is required in large quantities to catalyse the reaction.
4. Catalytic activity of a solid catalyst does not depend upon the strength of chemisorption.