Question

Statement 1: A wooden splint is set on fire and blown out, leaving a hot, glowing end. When the glowing splint is inserted into a sample of purified $ C{O_2} $ ​ gas, it will reignite into a flame.
Statement 2: $ C{O_2} $​ gas contains oxygen.
A.Both statement 1 and statement 2 are correct and statement 2 is the correct explanation of statement 1
B.Both the statement 1 and statement 2 are correct and statement 2 is not the correct explanation of statement 1
C.Statement 1 is correct but statement 2 is not correct
D.Statement 1 is not correct but statement 2 is correct
E.Both the statement 1 and statement 2 is not correct

Answer 1

Hint: An open flame is extinguished by air with purified carbon dioxide concentration of over 10 percent. Purified carbon dioxide is something which is devoid of oxygen and other components including water in some cases.

Complete step by step answer:
Let’s first talk about the properties of Carbon dioxide. It is a mildly poisonous, odourless, colourless gas with an acidic flavour that is mildly pungent. A small but major portion of the air is carbon dioxide. For most plant life, it is an essential raw material because it uses carbon dioxide to carry out photosynthesis and thus removes the excess content of carbon dioxide in the atmosphere.
To talk about its chemistry, it is a compound with one carbon and two oxygen as we can see in the chemical formula. Ignited magnesium continues to burn in carbon dioxide, but this gas doesn’t support the burning of most substances.

From the above mentioned explanation, it is clear that, statement 1 is not correct as purified carbon dioxide doesn’t contain oxygen and will not help to reignite the flame of the blown out wooden splint.
However, statement 2 is correct, as normal carbon dioxide gas contains oxygen molecules as we can see in the chemical formula of the compound.

So, the correct answer is Option D.

Additional Information:
Unconsciousness and mortality can be caused by sustained human exposure to concentrations of $ 5\% $ carbon dioxide.

Note:
Generally, carbon dioxide will not burn or support combustion. As a result, carbon dioxide is widely used for the manufacture of various chemicals as a raw source and as a working material for fire extinguishing systems etc