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TNPSC Group 2 · 2012 Preliminary Examination

115.  Consider the following:
1. CO burns with a blue flame
II. CO is good reducing agent and reduces alkali metal oxides
III. CO is toxic because it forms a complex with Haemoglobin in the blood and this complexes is 300 times more stable than oxy-haemoglobin
IV. CO form complex with Ni at 50° C and decomposition resulting complex gives pure Ni
Which of the statements given above is/are correct?

Answer: B.   II is not correct while I, III and IV are correct
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