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defon
3 years ago
11

When an alkane reacts with an element from group 7a, the reaction is referred to as?

Chemistry
2 answers:
Mila [183]3 years ago
8 0

Answer:

Halogenation.

Explanation:

Hello,

In this case, we must remember that group VIIA elements are known as halogens which include F, Cl, Br, I and At. Now, when an alkane reacts with the diatomic form of one of those halogen a haloganation chemical reaction occurs forming an alkyl halide and a hydrogen halide. For instance, for ethane, if it reacts with iodine, ethyl iodide and hydrogen iodide are yielded based on the given example:

CH_3-CH_3+I_2\rightarrow CH_3-CH_2-I+HI

Best regards

Elena-2011 [213]3 years ago
7 0
Alkanes are saturated hydrocarbon, that is they contain hydrogen and carbon without a double or triple bond between the carbon atoms, e.g. ethane, propane. Group 7a in the periodic table are called halogens e.g chlorine, bromine. Alkanes react with halogens in a reaction called substitution, where halogens replace hydrogen atoms in alkanes.
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