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