

MCQOPTIONS
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1. |
Which of the following is a chemical displacement reaction? |
A. | \[2Al+F{{e}_{2}}{{O}_{3}}\xrightarrow[{}]{heat}A{{l}_{2}}{{O}_{3}}+2Fe+Heat\] |
B. | \[2Na+C{{l}_{2}}\to 2\,NaCl\] |
C. | \[{{P}_{2}}{{O}_{5}}+3{{H}_{2}}O\xrightarrow{{}}2{{H}_{3}}P{{O}_{4}}\] |
D. | \[2\,PbS+3{{O}_{2}}\xrightarrow[{}]{heat}PbO+3S{{O}_{2}}\] |
Answer» B. \[2Na+C{{l}_{2}}\to 2\,NaCl\] | |