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John thought himself a chemist, but his eyes will see no more

for what he thought was H2O was H2SO4

Students are smart

Chemistry Professor: Now, class, here I have a beaker of H2SO4, and here I have a gold ring. Suppose I drop the ring into the sulphuric acid. Will the gold dissolve?

Student: No

Professor: Good. And will you please tell us why not?

Student: If it would dissolve, you wouldn’t put...

A limerick that I heard years ago

Poor Johnny used to drink
But alas, he drinks no more
For what he thought was H2O
Was H2SO4.

Billy

Billy was a chemist's son/
But now he is no more/
'Cos what he thought was H20/
Was H2So4.

In a chemistry class, the teacher asks a girl

- Mary, what is H2SO4?

- Oh god, this is so easy, why can't I remember, it's on the tip of my tongue.

Quickly, Johnny says:

- Then spit it out, that's sulfuric acid!

Billy was a chemist’s son.

Billy is no more.

What he thought was H2O was H2SO4.

Jimmy was Billy’s friend.

Jimmy’s dead too.

What he thought was H2O was H2O2.

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