Question

Number of $1^0,2^0$ and $3^0$ hydrogen atoms isopentane are respectively?

• A. 9,2,1
• B. 6,3,1
• C. 6,2,0
• D. 6,1,1

Answer 1

The correct option is A 9,2,1

So, this is the structure of isopentane.

So, here secondary hydrogen$\left(2\right)$, primary hydrogen$\left(9\right)$, tertiary hydrogen$\left(1\right)$.

The hydrogen attached to $1^o,2^o,3^o$ carbons are classified as $1^o,2^o,3^o$