7th Class Science Sample Paper Science Olympiad Model Test Paper-21

  • question_answer
    Some terms are missing in the table given below. Choose the correct option to make the table complete.
    Compound Formula
    \[\underline{\,\,\,\,P\,\,\,\,}\] \[{{C}_{6}}{{H}_{12}}{{O}_{6}}\]
    hydrochloric acid \[HCl\]
    \[\underline{\,\,\,\,Q\,\,\,\,}\] \[{{H}_{2}}S{{O}_{4}}\]
    nitric acid \[HN{{O}_{3}}\]
    potassium permanganate \[\underline{\,\,\,\,R\,\,\,\,}\]
    borax \[\underline{\,\,\,\,S\,\,\,\,}\]
    \[\underline{\,\,\,\,T\,\,\,\,}\] \[C{{H}_{4}}\]

    A) P - sugar, Q - sulphuric acid,\[R-{{K}_{2}}MnO\], \[S-N{{a}_{2}}{{B}_{4}}{{O}_{7}}\], T - methane.

    B) P - glucose, Q - sulphuric acid,\[R-KMn{{O}_{4}}\], \[S-NaB{{O}_{5}}\], T - methane.

    C) P - glucose, Q - sulphuric acid,\[R-KMn{{O}_{4}}\]\[S-N{{a}_{2}}{{B}_{4}}{{O}_{7}}\], T - methane.

    D) P - glucose, Q - sulphuric acid,\[R-KMn{{O}_{4}}\]\[S-N{{a}_{2}}{{B}_{4}}{{O}_{7}}\], T - methene.

    E) None of these

    Correct Answer: C


You need to login to perform this action.
You will be redirected in 3 sec spinner