MCQ
The number of structural isomers possible for the molecular formula = C3H9N is:
- A4
- B5
- C2
- D3
Explanation:
Structural isomers of C3H9N are

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The value of $x$ is
$2 Al + 3MnO \to Al_2O_3 + 3Mn$
Which of the following is correct? (Atomic weights of $Mn = 55$ and $Al = 27$)