Potanium dischromate reacts with concrntrated hydrochloric acid to yield
A. `CIO_(2)`
B. `KCIO_(2)`
C. `CI_(2)`
D. `CrO_(2)Cl_(2)`
A. `CIO_(2)`
B. `KCIO_(2)`
C. `CI_(2)`
D. `CrO_(2)Cl_(2)`
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
Correct Answer – 3
Oxidizing agent potassium dichromate oxidizes hydrochloric acid to chlorine:
`{:(K_(2)Cr_(2)O_(7)+8HCl rarr 2KCl +2CrCl_(3)+4H_(2)O+3[O]),(6HCl+3[O] rarr 3H_(2)O+3Cl_(2)),(bar(K_(2)Cr_(2)O_(7)+14 HCl rarr 2KCl+2CrCl_(3)+7H_(2)O+3Cl_(2))):}`
Ozone also oxidizes `HCl` and `Cl_(2)`
`O_(3)+2HCl rarr O_(2)+H_(2)O+Cl_(2)`
Chlorine gas from any of these sources can be dried by passing it through concentrated sulphuric acid and collected by downwards delievery.