The answer to this question will be C
The answer is B. Temperate.
Answer:
2x + 3y = 18 sum of charges of the iron ions must be +18 to balance 18 CN- ... y = 4 so there are 4 Fe3+ ions and (7–4) = 3
If it gains an electron it will be negatively charged and if it loses an electron it will be positively charged