Question

Which of the following molecules / lons contains coordinate covalent bond​

Answer 1

Electron-rich and electron-deficient atoms. It is best for ammonia and carbon dioxide.

Explanation:

• A Coordinated bond is formed between electron-rich and electron-deficient atoms. The donor atom should have at least one lone pair of electrons and the acceptor atom should have at least one vacant orbital.

In NH₄⁺, the nitrogen in NH₃ is electron-rich and H⁺ ions do not any electron.

Thus nitrogen from NH₃ shares a pair of electrons with H⁺ to make a coordinate bond.

• Each of the covalent bonds that we have looked at so far has involved each of the atoms that are bonding contributing one of the electrons to the shared pair.
• There is an alternate type of covalent bond in which one of the atoms provided both of the electrons in a shared pair.
• Carbon monoxide, CO, is a toxic gas that is released as a by-product during the burning of fossil fuels.
• The bonding between the C atom and the O atom can be thought of as proceeding in this way.