Question

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Define Frequency.
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Answer 1

Answer:

Allylic halides are the compounds in which the halogen atom is bonded to sp 3 −hybridised carbon atom next to carbon-carbon double bond (C=C). For example; CH3CH=CHCH2Cl is an allylic halide.

Answer 2

Answer:

the rate at which something occurs over a particular period of time or in a given sample.

"an increase in the frequency of accidents due to increased overtime"

2.

the rate per second of a vibration constituting a wave, either in a material (as in sound waves), or in an electromagnetic field (as in radio waves and light).

"different thicknesses of glass will absorb different frequencies of sound"