Thank you for registering.

One of our academic counsellors will contact you within 1 working day.

Please check your email for login details.

Use Coupon: CART20 and get 20% off on all online Study Material

Total Price: Rs.

There are no items in this cart.
Continue Shopping

questions of surface chemistry in last ten years IIT question papers

questions of surface chemistry in last ten years IIT question papers


1 Answers chandra sekhar
10 Points
12 years ago

Hi Maulik,

1. Rate of physisorption increases with

    a. decrease in temp.

    b. increase in temp.

    c. decrease in pressure

    d. decrease ion surface area.(2003)

2. Adsorption of gases on solid surface is generally exothermic because

     a.enthalpy is positive

     b.entropy decreases

     c.entropy increases energy increases. (2004)

3. Lyophillic sols are

     a. irreversible sols

     b.they are prepared from inorganic compound

     c.coagulated by adding electrolytes


4. Among the following, the surfactant that will form micelles in aqueous solution at the lowest molar concentration at ambient conditions is

     a. CH3(CH2)15N+(CH3)3Br-

     b. CH3(CH2)11OSO3-Na+

     c. CH3(CH2)6COO-Na+

     d. CH3(CH2)11N+(CH3)3Br-.(2008)

5. 1g of charcoal adsorbs 100 ml 0.5M CH3COOH to form a monolayer and therby the molarity of CH3COOH      reduces to 0.49. Calculate the surface area of the charcoal adsorbed by each molecule of acetic acid. Surface area of charcoal is 300 m2/g.(2003)

6. statement 1: Micelles are formed by surfactant molecules above the critical micellar concentration(CMC).

    statement 2: The conductivity of a solution having surfactant molecules decreases sharply at the CMC.(2007)

Think You Can Provide A Better Answer ?

Provide a better Answer & Earn Cool Goodies See our forum point policy


Get your questions answered by the expert for free