A compound contains 4.2% hydrogen, 24.2%...

A compound contains `4.2%` hydrogen, `24.2%` carbon and `71.6%` chlorine by mass. Its molar mass is `98.96 gm//mol`. Empirical formula of compound is :

`CH_(2)CI`

`C_(2)H_(4)CI_(2)`

`C_(2)H_(2)CI_(2)`

`C_(4)H_(4)CI_(4)`

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The correct Answer is:

A compound contains ……………….
`|(,"Mass(gm)","Mole",,underset("strength")underset("Molar")("Relative"),underset("formula")("Empirical")),(C,24.2,underset(=2.01)((24.2)/12),,1,),(H,4.2,underset(=4.2)(4.2/1),,2,C_(1)H_(2)Cl),(Cl,71.6,underset(=2.01)(71.6/35.5),,1,)|`

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A compound contains 4.07% H, 24.27% C , and 71.65% Cl . If its molar mass is 98.96 , the molecular formula will be

`C_(2) H_(4) Cl_(2)`

`CH_(2) Cl`

`C_(3) H_(6) H_(3)`

`C_(4) H_(8) Cl_(4)`

An organic compound contains 20.0%C, 6.66% H, 47.33% N and the rest was oxygen. Its molar mass is 60 g mol^(-1). The molecular formula of the compound is

`CH_4N_2O`

`C_2H_4NO_2`

`CH_3N_2O`

`CH_4N_2O_2`

A compound contains C=90% and H=10% Empirical formula of the compound is:

`C_(15)H_(30)`

`C_(15)H_(20)`

`C_3H_4`

`C_3H_(10)`