Which of the following metals was first discovered by man?
1 Bronze
2 Silver
3 Iron
4 Copper
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Answer / sanjay
in ncert books, copper was first discovered by man.
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In which year was the meteorology department founded?
The vast resources of unutilized natural gas can be used in the production of 1 Graphite 2 Fertilizers 3 Synthetic petroleum 4 Carbide
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
1.what is a pasacline?who invented it? 2.who was the first man to go into space?
the basic approach to science was established by:
Galvanized iron sheets have a coating of 1 Tin lead 2 Zinc 3 Chromium 4 Lead
What is the Ecology ?
Two or more forms of a chemical element having different physical properties but rising to identical chemical compounds are called 1 Allotropes 2 Isotopes 3 Isomers 4 Isotones
Catalytic properties of a substance may be best defined as a phenomenon of 1 Absorption 2 Chemisorption 3 Adsorption 4 None of these
The country helped in arihant’s built?
Explain how you can integrate Life skills in Science Teaching
0 Answers Mahatma Gandhi University,
Soda water contains 1 Nitrous acid 2 Carbonic acid 3 Carbon dioxide 4 Sulphuric acid