The invention of the safety razor with disposable stamped steel blades was introduced by whom? MCQ with Answer and Explanation
Question
Report Error
Discuss this Question (0)
Practice More Inventions and Discoveries Questions
Question #1
Report Error
The invention of the common high-pressure kitchen pressure cooker ('Digester') was invented by whom in 1679?
Correct Answer: Option A
Explanation:
French physicist Denis Papin invented the steam digester, which raised boiling temperatures by trapping internal steam pressure.
French physicist Denis Papin invented the steam digester, which raised boiling temperatures by trapping internal steam pressure.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
Question #2
Report Error
Who discovered the exact structural formula of the complex molecule Vitamin B12, using advanced X-ray crystallography?
Correct Answer: Option A
Explanation:
Dorothy Hodgkin determined the atomic structures of penicillin, vitamin B12, and insulin, winning the 1964 Nobel Prize in Chemistry.
Dorothy Hodgkin determined the atomic structures of penicillin, vitamin B12, and insulin, winning the 1964 Nobel Prize in Chemistry.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
Question #3
Report Error
The structure of benzene ring ($C_6H_6$) was discovered by which chemist?
Correct Answer: Option B
Explanation:
Friedrich August Kekulé discovered the ring structure of benzene after famously having a daydream of a snake biting its own tail.
Friedrich August Kekulé discovered the ring structure of benzene after famously having a daydream of a snake biting its own tail.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
No comments yet. Be the first to start the discussion!