✓ 2 MARKS
Very Short Answer
🔥 APPEARED IN 3 BOARD SETS
Using Valence Bond Theory, predict the geometry and magnetic nature of :
(1) $[\text{Ni}(\text{CO})_4]$
(2) $[\text{Fe}(\text{CN})_6]^{3-}$
[Atomic number : $\text{Ni} = 28$, $\text{Fe} = 26$]
01 // VERIFIED BOARD OCCURRENCES
| Year | Paper Code | Set | Position |
|---|---|---|---|
| CBSE 2023 | Series Other | Set 1 | Question iii |
| CBSE 2023 | Series Other | Set 1 | Question 31 |
| CBSE 2023 | Series Other | Set 1 | Question 32 |
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)