Answer:
second option
O=C-OR
R
Explanation:
ester: A compound most often formed by the condensation of an alcohol and an acid, with elimination of water. It contains the functional group C=O. joined via carbon to another oxygen atom.
https://brainly.in/question/21138251
Cr2O72- + 6CH3OH + 8H+ --- > 6CH2O + 2Cr3+ + 7H2O
The Rutherford model was called the nuclear model because he decided on the atom to consist of both the nucleus, and the orbits of electrons, so he separated the nucleus from being combined with the whole atom
