Author: Study Clue

In free-radical chlorination of isobutane, which hydrogen is substituted most due to radical stability and statistical factors combined? A Tertiary

While selecting a parent chain in IUPAC for an alkene, which feature gets first priority when chains are comparable? A

In naming branched alkanes, which rule ensures the correct parent chain is chosen as “main chain”? A Lowest boiling point

In IUPAC naming, what does the suffix “-ane” indicate about the hydrocarbon structure? A A. One double bond B C.

What is the general formula of alkanes in an open-chain series? A CnH2n B CnH2n−2 C CnH2n+2 D CnHn Explanation

A UV–Vis spectrum shows λmax shifting to longer wavelength and intensity increasing after adding –OH to an aromatic chromophore; this

When wavelength is converted from nm to cm for wavenumber, the key step is A Multiply by 10 B Multiply

For a first-order reaction, if the rate constant is 0.20 s⁻¹, the half-life is closest to which value? A 3.5

In the electromagnetic spectrum, UV lies between visible light and A Gamma rays B X-rays C Microwaves D Radio waves

In spectroscopy, what does wavelength represent A Energy per photon B Number of waves C Distance between crests D Photons