Silicon reacts with hydrochloric acid forming hydrogen in the following manner

Silicon + 4HCl  ------->  Silicon Tetrachloride + Hydrogen

Please Clarify this

Dear Student,

Generally non-metals do not react with acids. But silicon reacts with HCl to form silicon tetrachloride and releases hydrogen. Because of the need to form tetravalent covalent bonds with Si, other acids do not react with it.

Si  +  4HCl  →  SiCl₄ + H₂