Question

IUPAC name of [Cr(en)2Br2]+

Answer 1

Answer:

dibromidobis(ethane-1,2-diamine)chromium(|||)

Answer 2

IUPAC name of $[Cr(en)_2Br_2]^+$ is dibromidobis(ethane-1,2-diamine) chromium(III).

• The charge of en is 0 and the charge of Br is -1.
• Let the oxidation state of Cr is x. So, we can write-
• x+0-2=+1
• x=+3
• Thus, the oxidation state of Cr is +3.
• Again the name for en is ethane-1,2-diamine.
• The name for Br is bromido.
• Here two bromine and two en are present.
• So, the IUPAC name of $[Cr(en)_2Br_2]^+$ is dibromidobis(ethane-1,2-diamine) chromium(III).