Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • Medical
  • What is the percentage composition of carbon by mole in methyl isocyanate?Option: 1 14.3<st

What is the percentage composition of carbon by mole in methyl isocyanate?

Option: 1

14.3


Option: 2

42.8


Option: 3

28.6


Option: 4

40

 


Answers (1)

best_answer

The percentage composition of any element in a given compound defines the ratio of the amount of each element to the total amount of all elements present in the whole compound. Here, in the question percentage composition has been asked in terms of moles, thus the formula becomes: 

\mathrm{%Composition\,of\,element=\frac{Moles\,of\,element\,in\,a\,compound}{Total\,moles\,of\,all\,elements\,in\,compound}}

Here in compound:\mathrm{C{{H}_{3}}NCO}

Number of moles of Carbon-atom: 2

Number of moles of N-atom: 1

Number of moles of O-atom: 1

Number of moles of H-atom: 3

As a result, the total number of moles of elements in \mathrm{C{{H}_{3}}NCO: 2+1+1+3=7}

So, %Composition of Carbon-atom \mathrm{= \frac{2}{7}\times 100\approx 28.6%}

 

NOTE: If in the question general percentage composition is asked (not by moles), then the in formula we use atomic masses of elements.

Additional information: Methyl isocyanate gas was leaked from a pesticide plant situated in Bhopal in 1984, which killed more than 4000 people since it is a poisonous gas. 

Posted by

sudhir.kumar

View full answer

NEET 2024 Most scoring concepts

    Just Study 32% of the NEET syllabus and Score up to 100% marks

Similar Questions

Trending Articles/News

anam-khan

NEET UG 2025: Top government medical colleges with 5 years’ cut-off ranks; AIIMS Delhi most sought-after
anam-khan

NEET UG 2025 information bulletin soon; optional questions removed, exam in OMR pen-paper mode
anam-khan

Aiming for top medical colleges in India? Rank-wise NEET UG cut-offs for MBBS courses

Latest Question