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Chemistry : Equilibrium

Short Answer Type

201. What are the limitations of Arrhenius theory of acid and bases?

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202. Define neutralisation according to Arrhenius concept.

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Long Answer Type

203.

Discuss the Lowry Bronsted concept of acids and bases.
Or
Discuss the protonic concept of acids and bases.

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204. What do you understand by conjugate acid base pairs? Give examples.

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Short Answer Type

205. State the formula and name of the conjugate base of each of the following acid:

left parenthesis straight i right parenthesis space straight H subscript 3 straight O to the power of plus space space space space space space space space space left parenthesis ii right parenthesis space space space HSO subscript 4 superscript minus left parenthesis iii right parenthesis space NH subscript 4 superscript minus space space space space space space space space space left parenthesis iv right parenthesis space space HF

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206. State the formula and name of the conjugate base of the following acids:
(i)CH₃COOH (ii) CH₃NH₃⁺(iii)H₃PO₄

left parenthesis iv right parenthesis space straight H subscript 2 PO subscript 4 superscript minus

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207. State the formula and name of conjugate acid of the following bases:
(i) OH^–

left parenthesis ii right parenthesis space HPO subscript 4 superscript 2 minus end superscript

^{$left parenthesis iii right parenthesis space straight H subscript 2 PO subscript 4 superscript minus space space space space space space space space space space left parenthesis iv right parenthesis space space CH subscript 3 NH subscript 2$}

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208.

State the formula and name of conjugate acid of the following bases:
(i) $CO subscript 3 superscript 2 minus end superscript$ (ii) NH₃(iii) CH₃COO^– (iv) HS^–

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209. What is meant by the conjugate acid-base pair? Find the conjugate acid/base for the following species:

HNO subscript 2 comma space space CN to the power of minus comma space space space HClO subscript 4 comma space space space straight F to the power of minus comma space space space OH to the power of minus comma space space CO subscript 3 superscript 2 minus end superscript space and space straight S to the power of 2 minus end exponent.

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210. What will be the conjugate bases for the Bronsted acids : HF, H₂SO₄ and HCO^-₃?

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