Question

Although co2 is an insoluble compound, why is so2 insoluble?​

Answer 1

Answer:

Although, in spite of and despite show contrast. Is the relationship between the sentences that of contrast? Determine that first.

It is either time or reason.

You can write 'He waited as / since / because he saw the messenger.' Or with 'when' as mentioned earlier.

Answer 2

Answer:

SO2 is a soluble compound that dissolves in water but not in blood and so it does not impede oxygen transport.

CO and NO both compete with oxygen for binding with haemoglobin. SO3 is insoluble.

Hence, The compound, which is soluble in water but does not impede oxygen transportation, is SO2

So, the correct answer is 'SO2'.