JEE Main 2014 · 11 Apr · Shift 1 · Chemistry Q49

ChemistrySingle correct+4 / -1Question 49 of 90

Consider the coordination compound, $\ce{[Co(NH3)6]Cl3}$ . In the formation of this complex, the species which acts as the Lewis acid is :

\ce{[Co(NH3)6]^3+}

\ce{Cl-}

\ce{Co^3+}

\ce{NH3}

Answer and worked solution

Official answer: C

$\ce{Co^3+}$ accepts the lone pairs of the six $\ce{NH3}$ ligands, so it is the Lewis acid.

JEE Main 2014 · 11 Apr · Shift 1, Chemistry question 49