Question

Consider the thioformaldehyde molecule.

Answer 1

Answer:

In  thioformaldehyde molecule,

Central atom - C

lone pairs on central atom - zero

Ideal bond angle between  the carbon -hydrogen bonds - $120^{o}$

Compared to the ideal angle, you would expect the actual angle between the carbon-hydrogen bonds to be $120^{o}$.

Explanation:

The structure of thioformaldehyde is as follows. (in attachment).

From the structure,

Central atom - C

There is no lone pairs are present on the carbon atom, Hence,lone pairs on central atom - zero

The geometry  of  thioformaldehyde is Trigonal planar.

Hence, the ideal bond angle is $120^{o}$.

Ideal bond angle between  the carbon -hydrogen bonds - $120^{o}$

All bonds in the thioformaldehyde is similar. Therefore,actual angle between the carbon-hydrogen to be $120^{o}$.