Question

1. who discovered vitamins
2. who discovered hydrogen
3. who discovered oxygen
4. who discovered electron​

Answer 1

Answer:

Ans1- The discovery of the vitamins was a major scientific achievement in our understanding of health and disease. In 1912, Casimir Funk originally coined the term "vitamine".

Ans2- In the early 1500s the alchemist Paracelsus noted that the bubbles given off when iron filings were added to sulfuric acid were flammable. In 1671 Robert Boyle made the same observation. Neither followed up their discovery of hydrogen, and so Henry Cavendish gets the credit.

Ans3- Joseph Priestley (1733-1804) — Unitarian minister, teacher, author, and natural philosopher — was the Earl of Shelburne's librarian and tutor to his sons. In this room, then a working laboratory, Priestley pursued his investigations of gases. On 1 August 1774 he discovered oxygen.

Ans4- Joseph John Thomson (J. J. Thomson, 1856-1940; see photo at American Institute of Physics) is widely recognized as the discoverer of the electron. Thomson was the Cavendish professor of Experimental Physics at Cambridge University and director of its Cavendish Laboratory from 1884 until 1919.

Answer 2

Answer:

1 Casimir Funk

2 Henry Cavendish

3 Joseph Priestly

4 Joseph John Thomson

Explanation:

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