For Freundlich isotherm a graph of log \(\frac{x}{m}\) is plotted against log P. The slope of the line and its y – axis intercept respectively corresponds to________.

(a)

\(\frac{1}{n}\), K

(b)

log\(\frac{1}{n}\), K

(c)

\(\frac{1}{n}\), log K

(d)

log \(\frac{1}{n}\), log K

Which one of the following is correctly matched?

(a)

Emulsion - Smoke

(b)

Gel - butter

(c)

foam - Mist

(d)

whipped cream - sol

Collodion is a 4% solution of which one of the following compounds in alcohol – ether mixture?

(a)

Nitroglycerine

(b)

Cellulose acetate

(c)

Glycoldinitrate

(d)

Nitrocellulose

According to Freundlich adsorption isotherm,_______.

(a)

\(\frac { x }{ m } =kp\)

(b)

\(\frac { m }{ x } ={ (kp) }^{ \frac { 1 }{ n } }\)

(c)

\(\frac { x }{ m } ={ kp }^{ \frac { 1 }{ n } }\)

(d)

\(\\ \\ \frac { x }{ m } =\frac { k }{ { p }^{ \frac { 1 }{ n } } } \)

Which of the following interface cannot be obtained?

(a)

solid - solid

(b)

solid - liquid

(c)

gas - gas

(d)

liquid -Iiquid

Give two important characteristics of physisorption.

Which will be adsorbed more readily on the surface of charcoal and why? NH₃ or CO₂?

The mechanism of Fridel crafts reaction is given below
\({ C }_{ 6 }{ H }_{ 5 }+{ { CH }_{ 3 }Cl\overset { anhydrous\\ \quad { Alcl }_{ 3 } }{ \longrightarrow } }{ C }_{ 6 }{ H }_{ 5 }{ CH }_{ 3 }+HCl\)

When are condensation methods used for the preparation of colloids?

Why are colloids purified?

What are enzymes? Write a brief note on the mechanism of enzyme catalysis.

What do you mean by activity and selectivity of catalyst?

Describe some feature of catalysis by Zeolites.

Write a note on Ultrafilteration?

What are the advantages of Brownian movement?

What is the difference between homogenous and hetrogenous catalysis?

Describe adsorption theory of catalysis