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An organic compound made up of C, H, and...

An organic compound made up of `C, H`, and `N` contains `20%N`. The molecular mass of the organic compound is

A

`100 u`

B

`65 u`

C

`140 u`

D

`70 u`

Text Solution

Verified by Experts

The correct Answer is:
D
As per the information, we can only find out the minimum molecular mass of the compound considering one `N` atom per molecule. Thus,
`%` of `N = ("Atomic mass of N")/("Minimum molecular mass of compound") xx 100%`
`20% = (14 u)/("Minimum molecular mass") xx 100%`
or Minimum molecular mass of compound `= (14 u)/(20 %) xx 100%`
`=70 u`
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Knowledge Check

  • An organic compound made of C,H and N contain 20% nitrogen.Its molecular weight I

    A
    70
    B
    140
    C
    100
    D
    65

  • An organic compound made of C, H and N contains 20% nitrogen. Its molecular weight is.

    A
    70
    B
    140
    C
    100
    D
    65

  • An organic compound must contain

    A
    carbon
    B
    boron
    C
    oxygen
    D
    nitrogen.