$HBr$ and $HI$ can reduce $H_2SO_4$,$HCl$ can reduce $KMnO_4$,and $HF$ can reduce:

$A$ greenish-yellow gas reacts with an alkali metal hydroxide to form a halide that is used in the manufacture of safety matches and fireworks. Identify the gas and the halide,respectively.

Which of the following pairs is not correctly matched?

Which of the following statements is correct?

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

Which of the following reactions is not feasible?