what is the molecular shape of SiCl3H???

[angli524]

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The question is #17 on aamc test #7.

I am confused by this test question: what is the shape of SiCl3H?

The aamc answer that's given is tetrahedral. But that really can't be correct because there's 4 bonding groups and 1 nonbonding group. From my memory of high school chemistry that geometry is called "seesaw". Further, tetrahedral geometry is possible only for 4 bonding groups and 0 nonbonding groups. What the heck. Am I mistaken that there is a lone pair or is the answer wrong???

 

[mindquick]

The question is #17 on aamc test #7.

I am confused by this test question: what is the shape of SiCl3H?

The aamc answer that's given is tetrahedral. But that really can't be correct because there's 4 bonding groups and 1 nonbonding group. From my memory of high school chemistry that geometry is called "seesaw". Further, tetrahedral geometry is possible only for 4 bonding groups and 0 nonbonding groups. What the heck. Am I mistaken that there is a lone pair or is the answer wrong???

Si is just like C, it is right under C on the periodic table.

 

[angli524]

Si is just like C, it is right under C on the periodic table.

oh yeah, for some reason i was staring at S under oxygen and thinking it was Si, haha, i'm ******ed.

 

[Virgil]

Those 4 atoms are bonded to Si.