Gold is used to make jewelery?
(A) 22 carats
(B) 24 carat
(C) 16 carats
(D) 23 carats
Which of these metals is found in liquid state?
(A) Iron
(B) Mercury
(C) Silver
(D) Others
Which of the following non-metals are kept immersed in water?
(A) Sulfur
(B) White Phosphorus
(C) Red Phosphorus
(D) Iodine
Which of the following are metals found in free state in the earth's crust?
(A) Ag
(B) Mg
(C) Al
(D) Zn
Is it an ore of zinc?
(A) Zinc Blade
(B) Bauxite
(C) sodium chloride
(D) Sinawar
What is the percentage of carbon in steel?
(A) 3 %
(B) 4 %
(C) 2 %
(D) 5 %
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