Which of the following statements is not true for hydrogen: 1) It exists as a diatomic molecule. 2) It has…

Which of the following statements is not true for hydrogen:
1) It exists as a diatomic molecule.
2) It has one electron in the outermost shell.
3) It can lose an electron to form a cation which can freely exist.
4) It cannot form ionic compounds.
  1. 1
  2. 2
  3. 3
  4. 4

Solution

When an atom of hydrogen loses an electron, it becomes a proton that has an extremely small size (less than 10-15 m), and therefore has difficulty in surviving. Generally, the proton (H+) is captured by species having a lone pair of electrons, like with the case of hydronium ions in water.

Asked in: AP EAMCET 2020 (23 Sep Shift 1)

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