✓ 1 MARKS
MCQ
🔥 APPEARED IN 3 BOARD SETS
According to Werner's theory, the primary valencies of the central metal atom :
A
are satisfied by neutral molecules or negative ions.
B
are equal to its coordination number.
C
are satisfied by negative ions.
D
are non-ionisable.
01 // VERIFIED BOARD OCCURRENCES
| Year | Paper Code | Set | Position |
|---|---|---|---|
| CBSE 2026 | Series 56-3 | Set 1 | Question 4 |
| CBSE 2026 | Series 56-3 | Set 2 | Question 6 |
| CBSE 2026 | Series 56-3 | Set 3 | Question 1 |
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)