1) Number of hydrogens for a hydrocarbon with 11 carbons:
- There are 2 terminal carbons, bound
In hydrocarbon molecules, each carbon atom can form 3 single bonds with hydrogen atoms at the beginning and at the end of the carbon chain.
Also, within the carbon chain it is linked to other carbon atoms.
So, the total number of bonds of the carbon atom in simple hydrocarbons is 4.