Boron Nitride Compound Synthesis Explained

This solution details the chemical synthesis pathway to identify compounds X and Y based on the provided reactions.

Synthesis of Compound X ($B_3N_3H_3Cl_3$)

The reaction involves heating boron trichloride ($BCl_3$) with ammonium chloride ($NH_4Cl$) at $140$ $°C$. This process leads to the formation of a cyclic boron-nitrogen compound, specifically a substituted borazine.

The balanced chemical equation representing this step is approximately:

$3 BCl_3 + 3 NH_4Cl \xrightarrow{140°C} B_3N_3H_3Cl_3 + 6 HCl$

Therefore, compound X is identified as $B_3N_3H_3Cl_3$ (chloroborazine).

Reduction to Compound Y ($B_3N_3H_6$)

Compound X ($B_3N_3H_3Cl_3$) is subsequently treated with sodium borohydride ($NaBH_4$). $NaBH_4$ acts as a reducing agent, replacing the chlorine atoms bonded to boron with hydrogen atoms.

The reaction substitutes the three chlorine atoms in X with hydrogen atoms, yielding a fully hydrogenated borazine ring:

$B_3N_3H_3Cl_3 + 3 NaBH_4 \rightarrow B_3N_3H_6 + \text{byproducts}$

Thus, compound Y is identified as $B_3N_3H_6$ (borazine).

Identifying the Correct Option

Based on the synthesis steps:

• Compound X = $B_3N_3H_3Cl_3$
• Compound Y = $B_3N_3H_6$

Comparing these results with the given options, Option 1 correctly identifies both compounds X and Y.