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This is a timed quiz. You will be given 15 seconds per question. Are you ready?
15
Which of the following are the ingredients of gun metal?
Correct!
Wrong!
Chlorophyll is a naturally occurring chelate compound in which central metal is?
Correct!
Wrong!
For galvanizing iron which of the following metals is used?
Correct!
Wrong!
Non stick cooking utensils are coated with?
Correct!
Wrong!
The group of metals Fe, Co, Ni may best called as?
Correct!
Wrong!
Permanent hardness of water may be removed by the addition of ?
Correct!
Wrong!
Which of the following was to be discovered first in the chromospheres of the sun?
Correct!
Wrong!
The gases used in different types of welding would include?
Correct!
Wrong!
Science Quiz 139
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