Which of the following metals was first discovered by man?
1 Bronze
2 Silver
3 Iron
4 Copper
- 3 Answers
- 13207 Views
- I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / sanjay
in ncert books, copper was first discovered by man.
| Is This Answer Correct ? | 1 Yes | 1 No |
Which was the international geo - physical year?
Caustic soda is 1 NaC1 2 Na2CO3 3 NaOH 4 NaHCO3
The first synthetic fiber made by man was 1 Rayon 2 Nylon 3 Polyester 4 Terycott
The purest form of iron is 1 Steel 2 Cast iron 3 Pig iron 4 Wrought iron
21 Answers CIPET, FCI, HCL, JIPMER, NTSE, PSI Data Systems, RRB, SSC,
when u step up the voltage using atransformer ,,,then what about the secondary current will it be increased or decreased ?
What is the life cycle ?
In which of the following processes, is vanadium pent oxide used as a catalyst? 1 Contact process 2 Haber’s process 3 Solvay process 4 None of these
What are the important factors of cosmic rays?
why is ohms law not followed in long transmisson lines
Enriched uranium used in a nuclear reactor is 1 Uranium freed of all impurities 2 Uranium treated with radiation 3 Uranium alloyed with aluminum 4 Uranium with a high percentage of a particular isotope
Who is the oldest cosmonaut?
Which is the largest comet?
Biological Sciences 
