This is a timed quiz. You will be given 120 seconds to answer all questions. Are you ready?
120
The average salinity of sea water is?
Correct!
Wrong!
The variety of coal in which the deposit contains recognizable traces of the original plant material is?
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Wrong!
For galvanizing iron which of the following metals is used?
Correct!
Wrong!
Chlorophyll is a naturally occurring chelate compound in which central metal is?
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Wrong!
For safety, the fuse wire used in the mains for household supply of electricity must be made of metal having?
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Wrong!
The element of an electric stove made ?
Correct!
Wrong!
The gases used in different types of welding would include?
Correct!
Wrong!
Quartz crystals normally used in quartz clocks etc. is chemically ?
Correct!
Wrong!
Science Quiz 138
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