MCQ
A compound contains $69.5\%$ oxygen and $30.5\%$ nitrogen and its molecular weight is $92.$ The molecular formula of the compound is
- A$N_2O$
- B$NO_2$
- ✓$N_2O_4$
- D$N_2O_5$
✓
Answer
Correct option: C.
$N_2O_4$
c
| Element | $\%$ | At.wt | Atomic ratio | Simplest ratio |
| $N$ | $30.5$ | $14$ | $\frac {30.5}{14}=2.18$ | $\frac {2.18}{2.18}=1$ |
| $O$ | $69.5$ | $16$ | $\frac {69.5}{16}=4.35$ | $\frac {4.34}{2.18}=2$ |
Empirical formula $=$ $NO_2$ and molecular formula $=N_2O_4$
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Which of the following atmospheric layer contains clouds, water vapour and air?
The smallest bond angle is found in
Acid rain is caused due to increase in concentration of :
Reaction of one molecule of $HBr$ with one molecule of $1,3-$butadiene at ${40\,^o}C$ gives predominantly
→In Dumas' process, when nitrogen is estimated in any organic compound, the last gas collected is :
Correct $IUPAC$ name is :-
→What supports proper nerve functioning?
Identify which of the following statements is $\text{FALSE}\ ?$
→An example of a Lewis acid is
Olefins can be hydrogenated by