Task: Table-QA (source dataset: TableBench)

Task: 
You are given a table containing structured data and a natural language question referring to the table. Your goal is to analyze the table and provide an accurate and concise answer based on the given data.

Instructions:
1. Understand the Table: Examine the structure, headers, and data in the table. Identify relevant columns and rows related to the question.
2. Interpret the Question: Determine whether the question requires direct retrieval, aggregation, comparison, sorting, filtering, or inference.
3. Extract the Answer: Use logical reasoning and numerical operations (if necessary) to derive the correct response from the table.
4. Format the Answer: No explanation, return the answer in a structured JSON format: {"answer": <answer>}. If the question cannot be answered due to missing or ambiguous data, return a JSON response with {"answer": null}.

Table:
| component 1          | bp comp 1 (˚c)   | component 2            | bp comp 2 (˚c)   | bp azeo (˚c)   |   % wt comp 1 |   % wt comp 2 |
|:---------------------|:-----------------|:-----------------------|:-----------------|:---------------|--------------:|--------------:|
| acetaldehyde         | 21.0             | diethyl ether          | 34.6             | 20.5           |          76   |          24   |
| acetaldehyde         | 21.0             | n - butane             | - 0.5            | - 7.0          |          16   |          84   |
| acetamide            | 222.0            | benzaldehyde           | 179.5            | 178.6          |           6.5 |          93.5 |
| acetamide            | 222.0            | nitrobenzene           | 210.9            | 202.0          |          24   |          76   |
| acetamide            | 222.0            | o - xylene             | 144.1            | 142.6          |          11   |          89   |
| acetonitrile         | 82.0             | ethyl acetate          | 77.15            | 74.8           |          23   |          77   |
| acetonitrile         | 82.0             | toluene                | 110.6            | 81.1           |          25   |          75   |
| acetylene            | - 86.6           | ethane                 | - 88.3           | - 94.5         |          40.7 |          59.3 |
| aniline              | 184.4            | o - cresol             | 191.5            | 191.3          |           8   |          92   |
| carbon disulfide     | 46.2             | diethyl ether          | 34.6             | 34.4           |           1   |          99   |
| carbon disulfide     | 46.2             | 1 , 1 - dichloroethane | 57.2             | 46.0           |          94   |           6   |
| carbon disulfide     | 46.2             | methyl ethyl ketone    | 79.6             | 45.9           |          84.7 |          15.3 |
| carbon disulfide     | 46.2             | ethyl acetate          | 77.1             | 46.1           |          97   |           3   |
| carbon disulfide     | 46.2             | methyl acetate         | 57.0             | 40.2           |          73   |          27   |
| chloroform           | 61.2             | methyl ethyl ketone    | 79.6             | 79.9           |          17   |          83   |
| chloroform           | 61.2             | n - hexane             | 68.7             | 60.0           |          72   |          28   |
| carbon tetrachloride | 76.8             | methyl ethyl ketone    | 79.9             | 73.8           |          71   |          29   |
| carbon tetrachloride | 76.8             | ethylene dichloride    | 84.0             | 75.3           |          78   |          22   |
| carbon tetrachloride | 76.8             | ethyl acetate          | 77.1             | 74.8           |          57   |          43   |
| cyclohexane          | 81.4             | ethyl acetate          | 77.15            | 72.8           |          46   |          54   |
| cyclohexane          | 81.4             | ethyl nitrate          | 88.7             | 74.5           |          64   |          36   |
| diethyl ether        | 34.6             | methyl formate         | 31.50            | 28.2           |          44   |          56   |
| diethyl ether        | 34.6             | methylene chloride     | 40               | 40.8           |          30   |          70   |
| nitromethane         | 101.0            | toluene                | 110.8            | 96.5           |          55   |          45   |
| tetrahydrofuran      | 65.6             | chloroform             | 61.2             | 72.5           |          34.5 |          65.5 |
| tetrahydrofuran      | 65.6             | n - hexane             | 69               | 63.0           |          46.5 |          53.5 |
| toluene              | 110.63           | pyridine               | 115.3            | 110.2          |          78   |          22   |
| propylene glycol     | 188.2            | aniline                | 184.4            | 179.5          |          43   |          57   |
| propylene glycol     | 188.2            | o - xylene             | 144.4            | 135.8          |          10   |          90   |
| propylene glycol     | 188.2            | toluene                | 110.6            | 110.5          |           1.5 |          98.5 |

Question:
What is the difference in boiling points (in ˚C) between the component with the highest 'bp comp 1 (˚c)' value and the component with the lowest 'bp comp 1 (˚c)' value?


id: 72b56e932806834c1fa4b6e1287b7997
qtype: NumericalReasoning
label: 308.6