15.
16.
17.

18.

19.

20.
21.

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2 D 12617

What are characteristics that a primary standard should possess ?
Discuss basic features of Pauling’s scale of electronegativity.

Explain Lowry Bronsted theory of acids and bases. Compare relative strength of conjugate acid
and base.

The masses of ಉಚ್ಚ atom, 1, and 01] are 39.975 amu, 1.0078 and 1,0086 amu. Calculate
binding energy per nucleon for Ca atom.

State and illustrate group displacement law.
(5 x 5 = 25 marks)
Section C (Essay)

Answer any one question.
The question carries 11 marks.

Define and explain the principle behind use of adsorption indicators.
What is Born-Haber cycle ? Discuss with respect to NaCl.
(1 x 11 = 11 marks)

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