Who discovered that certain living tissue matrices lack internal cell partitions, establishing syncytial structures? MCQ with Answer and Explanation
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Question #1
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Who discovered that the chemical element Calcium is isolated via electrolysis of lime and mercuric oxide mixtures?
Correct Answer: Option D
Explanation:
Sir Humphry Davy isolated elemental calcium metal in 1808 using a mercury-cell electrolysis setup.
Sir Humphry Davy isolated elemental calcium metal in 1808 using a mercury-cell electrolysis setup.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
Question #2
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The invention of the common household safety glass used in car windows was an accidental discovery by whom?
Correct Answer: Option B
Explanation:
Bénédictus dropped a glass flask coated with a dried cellulose nitrate plastic film in 103, discovering that the shards held together.
Bénédictus dropped a glass flask coated with a dried cellulose nitrate plastic film in 103, discovering that the shards held together.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
Question #3
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The invention of the common household incandescent light bulb configuration featuring durable tungsten filaments was patented by whom?
Correct Answer: Option C
Explanation:
Coolidge developed ductile tungsten wire processing, and Langmuir filled bulbs with inert gas, extending operation life dramatically.
Coolidge developed ductile tungsten wire processing, and Langmuir filled bulbs with inert gas, extending operation life dramatically.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
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