JEE Main 2015 (Offline) | Surface Chemistry Question 105 | Chemistry

3 g of activated charcoal was added to 50 mL of acetic acid solution (0.06N) in a flask. After an hour it was filtered and the strength of the filtrate was found to be 0.042 N. The amount of acetic acid adsorbed (per gram of charcoal) is:

36 mg

42 mg

54 mg

18 mg

JEE Main 2013 (Offline)

MCQ (Single Correct Answer)

-1

Out of Syllabus

The coagulating power of electrolytes having ions Na⁺, Al³⁺ and Ba²⁺ for arsenic sulphide sol increases in the order:

Na⁺ < Ba²⁺ < Al³⁺

Al³⁺ < Ba²⁺ < Na⁺

Ba²⁺ < Na⁺ < Al³⁺

Al³⁺ < Na⁺ < Ba²⁺

AIEEE 2012

MCQ (Single Correct Answer)

-1

Out of Syllabus

According to Freundlich adsorption isotherm, which of the following is correct ?

$${x \over m} \propto {p^0}$$

$${x \over m} \propto {p^1}$$

$${x \over m} \propto {p^{1/n}}$$

All the above are correct for different ranges of pressure

AIEEE 2009

MCQ (Single Correct Answer)

-1

Out of Syllabus

Which of the following statements is incorrect regarding physisorptions ?

It occurs because of vander Waal’s forces.

More easily liquefiable gases are adsorbed readily.

Under high pressure it results into multi molecular layer on adsorbent surface.

Enthalpy of adsorption ($$\Delta H_{adsorption}$$ ) is low and positive

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