12th Class Chemistry The p-block Elements-II / p-ब्लॉक तत्व-II Question Bank 11th CBSE Chemistry The P-Block Elements

  • question_answer
    Write the balanced equations for the following reactions. (i) SnO is treated with dilute \[HN{{O}_{3}}\] (ii) Tin is heated with excess of chlorine gas (iii) Lead sulphide is heated in air.

    Answer:

                    (i) Stannous nitrate is formed. \[SnO+2HN{{O}_{3}}\text{(dil}\text{.)}\,\xrightarrow{\,}\,Sn{{(N{{O}_{3}})}_{2}}+{{H}_{2}}O\] (ii) Stannic chloride is formed. \[Sn\,+2C{{l}_{2}}\,\xrightarrow{Heat}\,SnC{{l}_{4}}\] (iii) A mixture of \[PbO\] and\[S{{O}_{2}}\] is formed. \[2PbS+3{{O}_{2}}\xrightarrow{Heat}\,2PbO+2S{{O}_{2}}\]


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