Programme Code : BDP
Course Code : CHE-O2
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Year : 2012 Views: 758 Submitted By : r.s.banait On 29th September, 2012



Q.5 a) How is red lead formed from lead oxide? Give the relevant reactions. What are the

uses of red lead? (4)

b) Give suitable reactions to explain why the pale blue liquid of N2O3 loses its colour on

warming? (2)

c) Hypophosphorous acid is monobasic even though it has three hydrogen atoms. Why? (2)

d) Give one very important use of hydrazine. (1)

e) What is phosphatic slag? (1)

No Answer Found