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Which of the following statements about hydrogen is incorrect?

  1. A
    Hydrogen never acts as cation in ionic salts.
  2. B
    Hydronium ion, exists freely in solution.
  3. C
    Dihydrogen does not act as a reducing agent.
  4. D
    Hydrogen has three isotopes of which tritium is the most common.

Solution & Step-by-step Explanation

Both statements C and D are incorrect. Dihydrogen is a reducing agent. Regarding D, Protium () is the most common isotope (99.98%); Tritium is radioactive and exists only in trace amounts.

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Which of the following statements about hydrogen is incorrect?
A
Hydrogen never acts as cation in ionic salts.
B
Hydronium ion, exists freely in solution.
C
Dihydrogen does not act as a reducing agent.
D
Hydrogen has three isotopes of which tritium is the most common.

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