Which of the following reactions would be incorrect?

Given below are two statements:
Statement $I$: The increasing order of boiling point of hydrogen halides is $HCl < HBr < HI < HF$
Statement $II$: The increasing order of melting point of hydrogen halides is $HCl < HBr < HF < HI$
In the light of the above statements, choose the correct answer from the options given below

Given below are two statements: one is labelled as Assertion $(A)$ and the other is labelled as Reason $(R).$
Assertion $(A):$ $ICl$ is more reactive than $I_{2}.$
Reason $(R):$ $I-Cl$ bond is weaker than $I-I$ bond.
In the light of the above statements,choose the most appropriate answer from the options given below:

Astatine is a

Given below are two statements: one is labelled as Assertion $A$ and the other is labelled as Reason $R$.
Assertion $A :$ Fluorine forms one oxoacid.
Reason $R :$ Fluorine has the smallest size amongst all halogens and is highly electronegative.
In the light of the above statements,choose the most appropriate answer from the options given below.

Which gas has been used since ancient times to remove lignin from wood?