Predicting chemical reactions

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Question 4
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Concentrated sulfuric acid, H2SO4\text{H}_2\text{SO}_4H2​SO4​, is added to separate solid samples of three sodium halides: sodium chloride (NaCl\text{NaCl}NaCl), sodium bromide (NaBr\text{NaBr}NaBr), and sodium iodide (NaI\text{NaI}NaI).

Which row in the table below correctly identifies the sulfur-containing reduction products formed in each reaction?

RowSodium chloride (NaCl)Sodium bromide (NaBr)Sodium iodide (NaI)ANoneSO2SO2,S,H2SBHClSO2H2SCNoneH2SSO2,SDSO2SO2,SSO2,S,H2S \begin{array}{|c|c|c|c|} \hline \text{Row} & \text{Sodium chloride } (\text{NaCl}) & \text{Sodium bromide } (\text{NaBr}) & \text{Sodium iodide } (\text{NaI}) \\ \hline \text{A} & \text{None} & \text{SO}_2 & \text{SO}_2, \text{S}, \text{H}_2\text{S} \\ \hline \text{B} & \text{HCl} & \text{SO}_2 & \text{H}_2\text{S} \\ \hline \text{C} & \text{None} & \text{H}_2\text{S} & \text{SO}_2, \text{S} \\ \hline \text{D} & \text{SO}_2 & \text{SO}_2, \text{S} & \text{SO}_2, \text{S}, \text{H}_2\text{S} \\ \hline \end{array} RowABCD​Sodium chloride (NaCl)NoneHClNoneSO2​​Sodium bromide (NaBr)SO2​SO2​H2​SSO2​,S​Sodium iodide (NaI)SO2​,S,H2​SH2​SSO2​,SSO2​,S,H2​S​​

Row A

Row B

Row C

Row D

Predicting chemical reactions Questions

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