Question

what is the valency of methane, ethene and ethyne?​

Answer 1

C 2H 4 is ethene or ethylene is a colourless hydrocarbon. The carbon has valency of 4 as the molecule has four H atoms bound to a pair of C atoms that are connected by double bonds.

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Answer 2

When two properties of a system are

When two properties of a system aremathematically related to each other,

When two properties of a system aremathematically related to each other,the relation can be deduced by

When two properties of a system aremathematically related to each other,the relation can be deduced bya. Working out mean deviation

When two properties of a system aremathematically related to each other,the relation can be deduced bya. Working out mean deviationb. Plotting a graph

When two properties of a system aremathematically related to each other,the relation can be deduced bya. Working out mean deviationb. Plotting a graphc. Calculating relative error

When two properties of a system aremathematically related to each other,the relation can be deduced bya. Working out mean deviationb. Plotting a graphc. Calculating relative errord. all the above three

When two properties of a system aremathematically related to each other,the relation can be deduced bya. Working out mean deviationb. Plotting a graphc. Calculating relative errord. all the above three