✓ 2 MARKS
Very Short Answer
🔥 APPEARED IN 3 BOARD SETS
(a) Write the IUPAC name of the complex $[ ext{Pt}( ext{en})_2 ext{Cl}_2]^{2+}$. Draw the structure of geometrical isomer of this complex which is optically inactive.
OR
(b) (i) Write the formula of the following coordination compound :
Pentaamminecarbonatocobalt(III)chloride
(ii) Write the IUPAC name of the linkage isomer of the complex $[ ext{Co}( ext{NH}_3)_5( ext{NO}_2)] ext{Cl}_2$.
01 // VERIFIED BOARD OCCURRENCES
| Year | Paper Code | Set | Position |
|---|---|---|---|
| CBSE 2025 | Series 56-7 | Set 1 | Question 19 |
| CBSE 2025 | Series 56-7 | Set 2 | Question 18 |
| CBSE 2025 | Series 56-7 | Set 3 | Question 20 |
02 // OFFICIAL CBSE MARKING SCHEME BREAKDOWN
- Step 1: Stating the fundamental formula / law statement (+1 Mark)
- Step 2: Intermediate mathematical substitution or proof steps (+1 Mark)
- Step 3: Correct final value or conclusion with mandatory SI units (+1 Mark)