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Chemistry · General Introduction: Electronic configuration and general trends in physical and chemical properties of elements across the periods and down the groups

} O_{3}+C_{2} N_{2} & \text { (1) Black colour } \\ \text { (B) } H_{2} O_{2}+O_

\( \begin{array}{ll}\text { List-I } & \text { List-II } \\ \text { (A) } O_{3}+C_{2} N_{2} & \text { (1) Black colour } \\ \text { (B) } H_{2} O_{2}+O_{3} & \text { (2) Rocket fuel } \\ \text { (C) } A g+O_{3} & \text { (3) Tailing } \\ \text { (D) } O_{3}+H g & \text { (4) } O_{2}+H_{2} O\end{array} \) The correct match is:

  • A. A-1, B-3, C-2, D-4
  • B. A-2, B-4, C-1, D-3
  • C. \( A-3, B-2, C-3, D-1 \)
  • D. \( A-4, B-1, C-4, D-2 \)

Step-by-step solution

Reaction of O3 with C2N2 (cyanogen) is used as rocket fuel (A-2). H2O2 + O3 produces O2 and H2O (B-4). Ag + O3 forms black Ag2O (C-1). O3 + Hg causes 'tailing' of mercury (D-3). Hence, the correct match is option B.
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