Phosphorous Quiz

Quiz

1. It is an element that exists in two major forms-white phosphorous and red phosphorous.

a. Phosphorous c. Phosphate

b. Phosphine d. Phosphorous acid

2. It is never found as a free element on Earth due to its high reactivity.

a. Phosphine c. Phosphate

b. Phosphorous d. Phosphorous acid

3. It is obtained from phosphorous compounds found in sedimentary and igneous rock deposits and is seen as diminishing world resource, and an element necessary for all life on Earth.

a. Phosphorous acid c. Phosphine

b. Phosphate d. Phosphorous

4-8. Give at least 5 compounds of phosphorous.

- Phosphorous trichloride

- Phosphorous sulfides

- Sodium hypophosphite

- Phosphorous acid

- Phosphine

- Phosphides

9-10. Two major forms of Phosphorous.

- Red phosphorous

- White phosphorous

11-19. Uses of Phosphorous.

- for agriculture

- to make phosphoric acid

- production of fertilizer

- fireworks

- matches

-pesticides

-toothpaste

-soft drinks

-detergents

20. It can be used as smoke screen for military purposes.

a. Red phosphorous c. White phosphorous

b. Phosphine d. Phosphides

21. It is essential for manufacturing matchbook strikers and flares.



22. It is used in the production of methamphetamine.



23. It is used in the production of fungicides as the chemical phosphorous trichloride.



24-26. Raw materials in manufacturing of white phosphorous

- Coke

- Gravel

- Raw phosphate

27. Red phosphorous is manufactured from



28. He thinks he discovered the Philosopher’s Stone that could turn brase metals into gold.

a. Hennig Brandt c. Robert Boyle

b. Daniel Kraft d. Ambrose Godfrey

29. When did Hennig Brandt discovered phosphorous?

a. 1996 c. 1696

b. 1699 d. 1669

30. What is the molecular weight of Phosphorous?

a. 39.07 g/mol c. 30.97 g/mol

b. 93.70 g/mol d. 37.09 g/mol

Phosphorous Quiz

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