A) \[\text{SiC}\]
B) \[\text{B}{{\text{e}}_{\text{2}}}\text{C}\]
C) \[\text{Ca}{{\text{C}}_{\text{2}}}\]
D) \[\text{M}{{\text{g}}_{\text{2}}}{{\text{C}}_{\text{3}}}\]
Correct Answer: A
Solution :
\[(A)SiC\Rightarrow \]Covalent carbide [b] \[B{{e}_{2}}C+4{{H}_{2}}O\xrightarrow[{}]{{}}2Be{{(OH)}_{2}}+C{{H}_{4}}\uparrow \] [c] \[Ca{{C}_{2}}+2{{H}_{2}}O\xrightarrow[{}]{{}}HC\equiv CH\uparrow +Ca{{(OH)}_{2}}\] [d] \[M{{g}_{2}}{{C}_{3}}+2{{H}_{2}}O\xrightarrow[{}]{{}}2Mg{{(OH)}_{2}}\]\[+{{H}_{3}}C-C\equiv CH\uparrow \]
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