HSC Science कक्षा १२ - Tamil Nadu Board of Secondary Education Question Bank Solutions for Chemistry

Ionic conductance at infinite dilution of Al³⁺ and \[\ce{SO^{2-}_4}\] are 189 and 160 mho cm² equiv⁻¹. Calculate the equivalent and molar conductance of the electrolyte Al₂(SO₄)₃ at infinite dilution.

For Freundlich isotherm a graph of log `"x"/"m"` is plotted against log p. The slope of the line and its y-axis intercept respectively corresponds to ____________.

Which of the following is incorrect for physisorption?

Which one of the following characteristics is associated with adsorption?

Adsorption of a gas on solid metal surface is spontaneous and exothermic, then ____________.

If x is the amount of adsorbate and m is the amount of adsorbent, which of the following relations is not related to adsorption process?

Give two important characteristics of physisorption.

Differentiate physisorption and chemisorption.

In case of chemisorption, why adsorption first increases and then decreases with temperature?

Which will be adsorbed more readily on the surface of charcoal and why? NH₃ or O₂?

Heat of adsorption is greater for chemisorptions than physisorption. Why?

What are the factors which influence the adsorption of a gas on a solid?

Why is desorption important for a substance to act as a good catalyst?

Which of the following reagent can be used to convert nitrobenzene to aniline?

The method by which aniline cannot be prepared is ____________.

Which one of the following will not undergo Hofmann bromamide reaction?

\[\ce{CH3CH2Br ->[aq NaOH][\Delta] A ->[KMnO4/H^+][\Delta] B ->[NH3][\Delta] C ->[Br2/NaOH] D}\] ‘D’ is:

Which one of the following nitro compounds does not react with nitrous acid?

Which of the following reaction is not correct.

‘A’ is: