question_answer 30)

  The following reaction is an example of a (i) displacement reaction (ii) combination reaction (iii) redox reaction (iv) neutralization reaction (a) 1 and 4                           (b) 2 and 3                           (c) 1 and 3                           (d) 3 and 4

Answer:

  (d) It is a redox reaction because oxidation and reduction both take place simultaneously in this reaction. Also, it is a displacement reaction because H of NH3 has been displaced by oxygen.