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Quiz-Chemistry-1

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Quiz-Chemistry-1

Here are some interesting questions on science

What was Thomas Edison's first patent?
(1) Light bulb,  (2) Cylindrical phonograph,   (3) Electric voting machine,  (4) Automatic telegraph

On June 1, 1869 Edison was granted his first patent for his electric voting machine, but no one wanted to use it, so Edison decided that he would not invent anything which would not sell. Next time he invented improved stock market ticker tape machine (1869) which earned a lot of money (then $40,000, now about $700,000) for him.

Dry ice is the solid form of what?
(1) Nitrogen oxide, (2) Carbon monoxide, (3) Hydrochloric acid, (4) Carbon dioxide.

(2) Carbon dioxide

Ag is the chemical symbol for which element?
(1) Silver  (2) Aluminum,  (3) Gold,  (4) Iron;  (5) Mercury

(1) Silver

Which metal is found in liquid state on room temperature?
(1) iron;  (2) Manganese,  (3) Mercury,  (4)   (5) 

(3) Mercury

 

 

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Created by Sushma Gupta on February 27, 2011
Contact:  sushmajee@yahoo.com
Modified on 11/17/13