I would say your answer is C, or the last one. Hope it helps
1.pOH+pH=14
pOH+1*10^=14
pOH=13.9999
Answer: hopefully this is right UwU
Explanation: The infrared spectrum of a sample is recorded by passing a beam of infrared light through the sample. When the frequency of the IR is the same as the vibrational frequency of a bond or collection of bonds, absorption occurs. Examination of the transmitted light reveals how much energy was absorbed at each frequency (or wavelength).
When it comes into contact with It will turn purple