Embibe Experts Solutions for Chapter: Surface Chemistry, Exercise 2: Exercise-2

For the same mechanism as problem, refer to the given figure and choose the correct set of identifications.

$\underset{\left(\mathrm{Enzyme}\right)}{\mathrm{E}} + \underset{\left(\mathrm{Reactant}\right)}{\mathrm{S}} \rightleftharpoons \underset{\left(\mathrm{Intermediate}-1\right)}{\mathrm{ES}}$

$\underset{\left(\mathrm{Intermediate}-1\right)}{\mathrm{ES}} \rightleftharpoons \underset{\left(\mathrm{Intermediate}-2\right)}{\mathrm{EP}}$                    

$\underset{\left(\mathrm{Intermediate}-2\right)}{\mathrm{EP}} \rightleftharpoons \underset{\left(\mathrm{Enzyme}\right)}{\mathrm{E} } + \underset{\left(\mathrm{Product}\right)}{\mathrm{P}}$

Which of the following statements is correct for a lyophilic solution?

Smoke has generally blue tinge. It is due to :

The volume of nitrogen gas (measured at STP) required to cover a sample of silica gel with a monomolecular layer is $129{ \mathrm{cm}}^3/\mathrm{g}$ of gel. Calculate the surface area per gram of the gel if each nitrogen molecule occupies $16.2\times {10}^{-20}{ \mathrm{m}}^2.$

(Report your answer after dividing by $10$)

How many of these reactions are homogeneously catalysed?

(i) ${\text{2SO}}_2\left(\mathrm{g}\right)+{\mathrm{O}}_2\left(\mathrm{g}\right)\stackrel{\mathrm{NO}\left(\mathrm{g}\right)}{⟶}2{\mathrm{SO}}_3\left(\mathrm{g}\right)$

(ii) ${\mathrm{C}}_{12}{\mathrm{H}}_{22}{\mathrm{O}}_{11}\left(\mathrm{aq}\right)+{\mathrm{H}}_2\mathrm{O}\left(\mathrm{l}\right)\stackrel{{\mathrm{H}}_2{\mathrm{SO}}_4\left(\mathrm{l}\right)}{⟶}{\mathrm{C}}_6{\mathrm{H}}_{12}{\mathrm{O}}_6\left(\mathrm{aq}\right) + {\mathrm{C}}_6{\mathrm{H}}_{12}{\mathrm{O}}_6 \left(\mathrm{aq}\right)$

(iii) $2{\mathrm{SO}}_3\left(\mathrm{g}\right)+{\mathrm{O}}_2\left(\mathrm{g}\right)\stackrel{\text{ Pt(s) }}{⟶}2{\mathrm{SO}}_3\left(\mathrm{g}\right)$
(iv) ${\mathrm{N}}_2\left(\mathrm{g}\right)+3{\mathrm{H}}_2\left(\mathrm{g}\right)\stackrel{\mathrm{Fe}\left(\mathrm{s}\right)}{⟶}2{\mathrm{NH}}_3\left(\mathrm{g}\right)$

(v) $4{\mathrm{NH}}_3\left(\mathrm{g}\right)+5{\mathrm{O}}_2\left(\mathrm{g}\right)\stackrel{\mathrm{Pt}\left(\mathrm{s}\right)}{\to }4\mathrm{NO}\left(\mathrm{g}\right)+6{\mathrm{H}}_2\mathrm{O}\left(\mathrm{g}\right)$

(vi) ${\mathrm{CH}}_3{\mathrm{COOCH}}_3\left(\mathrm{l}\right)\stackrel{\mathrm{HCl}\left(\mathrm{l}\right)}{⟶}{\mathrm{CH}}_3\mathrm{COOH}\left(\mathrm{aq}\right)$

(vii) Vegetable oils $\left(\mathrm{l}\right)+{\mathrm{H}}_2\left(\mathrm{g}\right)\stackrel{\mathrm{Ni}\left(\mathrm{s}\right)}{⟶}$ Vegetable ghee $\left(\mathrm{s}\right)$ 

Which of the following are correct statements?

Which of the following are the correct?

Which of the following statements is correct?