HSC · Chemistry 2nd Paper · Chapter 4: তড়িৎ রসায়ন · MCQ

নিচের কোনটি সমসত্ত্ব প্রভাবন?

• ক.
  $$\mathrm{H}-\mathrm{COOH}(\mathrm{~g}) \xrightarrow{\mathrm{Cu}} \mathrm{H}_2(\mathrm{~g})+\mathrm{CO}_2(\mathrm{~g})$$
• খ.
  $$2 \mathrm{SO}_2(\mathrm{~g})+\mathrm{O}_2(\mathrm{~g}) \xrightarrow{\mathrm{NO}} 2 \mathrm{SO}_3(\mathrm{~g})$$
• গ.
  $$2 \mathrm{CO}(\mathrm{~g})+\mathrm{O}_2(\mathrm{~g}) \xrightarrow{\mathrm{Pt}^2} 2 \mathrm{CO}_2(\mathrm{~g})$$
• ঘ.
  $$\mathrm{N}_2(\mathrm{~g})+3 \mathrm{H}_2(\mathrm{~g}) \xrightarrow{\mathrm{Fe}^2} 2 \mathrm{NH}_3(\mathrm{~g})$$