NEET Coordination Compounds — Set 13

Question 1

What is the oxidation state of iron in $ \ce{[Fe(H2O)4Cl2]} $?

Accepted Answer

In $ \ce{[Fe(H2O)4Cl2]} $, $ \ce{H2O} $ is neutral, each $ \ce{Cl^-} $ is -1. The complex is neutral, so $ x + 0 + 2(-1) = 0 $, $ x = +2 $.

Question 2

What is the coordination number of copper in $ \ce{[Cu(en)2]^2+} $?

Accepted Answer

In $ \ce{[Cu(en)2]^2+} $, each ethane-1,2-diamine (en) is bidentate, contributing 2 donor atoms. Total = 2 × 2 = 4.

Question 3

What is the IUPAC name of $ \ce{[Mn(H2O)4Cl2]} $?

Accepted Answer

Ligands: aqua ($ \ce{H2O} $), chlorido ($ \ce{Cl} $), alphabetically ordered. Mn is +2 (neutral complex, 2 $ \ce{Cl^-} $). Name: tetraaquadichloridomanganese(II).

NEET Chemistry: Coordination Compounds — Practice Set 13

Q1. What is the oxidation state of iron in \( \ce{[Fe(H2O)4Cl2]} \)?

Q2. What is the coordination number of copper in \( \ce{[Cu(en)2]^2+} \)?

Q3. What is the IUPAC name of \( \ce{[Mn(H2O)4Cl2]} \)?

Q4. How many water molecules act as ligands in \( \ce{[Fe(H2O)5Cl]SO4} \)?

Q5. The number of geometrical isomers for \( \ce{[Pt(NH3)2Cl2]} \) is:

Q6. How many moles of \( \ce{AgCl} \) precipitate when 1 mole of \( \ce{[Co(H2O)4Cl2]Cl} \) reacts with excess \( \ce{AgNO3} \)?

Q7. What is the IUPAC name of \( \ce{[Cr(H2O)4(SCN)2]Cl} \)?

Q8. Which complex results in 2 moles of precipitate when treated with excess \( \ce{BaCl2} \) per mole of compound?

Q9. Which complex has the most unpaired electrons when the metal is in a +2 oxidation state in an octahedral field with weak field ligands?

Q10. What is the IUPAC name of \( \ce{[Co(NH3)3Cl3]} \)?