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"5 eggs" Multiply By "4 eggs" Is what ?:

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Posted by: Mr. Babatunde
« on: February 29, 2020, 10:51:09 AM »



[Chemistry 5] Hydrogen And Its Compound (Hydride,Halogen) Solutions

1. An isotopy of hydrogen commonly referred to as heavy water is

A. protium
B. deuterium ✔
C. tritium
D. basic water

2. Hydrogen is manufactured via the following methods except

A. action of steam on iron ✔
B. action of steam on red-hot coke
C. action of steam on methane under nickel catalyst
D. elctrolytic method

3. All, except one metal, can displace hydrogen from water or acids

A. Zinc
B. Silver ✔
C. Potassium
D. Heated magnesium

4. Oxidation state of hydrogen in the hydride of nitrogen is

A. +1
B. +3
C. -3 ✔
D. -1

5. From the reaction Fe2O3(s) + 3H2(g) ✔- 2Fe(s) + 3H2O(g) Hydrogen is behaving as an

A. Oxidizing agent
B. Reducing agent ✔
C. Steam donor
D. Hydride

6. Which of the following metals will not give hydrogen with dilute hydrochloric acid ?

A. Cu ✔
B. Zn
C. Fe
D. Ca

7. Sodium hydride react with water to

A. Form acidic solution
B. Liberate hydrogen gas ✔
C. Form a salt
D. Liberate oxygen

8. With a lighted wooden splinter, hydrogen gives what sound

A. pop ✔
B. jazz
C. vivid
D. bass

9. Who discovered hydrogen ?

A. Carvendish ✔
B. Thomas
C. Lavoisier
D. killings

10. Hydrogen has a low melting point of

A. +273 degree celcius
B. -253 degree celcius ✔
C. -273 degree celcius
D. +253 degree celcius

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