Question

5. Which of the following is the ore of iron?
(a) copper glance 0 (b) bauxite
(c) haematite
(d) silica
6. Which of the following is a metalloid?
(a) arsenic
(b) carbon
(c) tin
(d) oxygen
7. Which of the following metals is brittle in nature?
(a) gold
(b) zinc
(c) silver
(d) iron
8. Which of the following are the constituent elements of bronze?
(a) copper and zinc
(b) copper and tin
(c) copper and nickel
(d) copper and aluminium
9. Which of the following metals is used in making international standards of weight and measures?
(a) sodium
(b) potassium
(c) platinum
(d) iron
10. Which of the following non-metals is used to preserve body organs?
(a) nitrogen
(b) sulphur O (c) chlorine
(d) phosphorus​

Answer 1

Answer:

Here is you answer mate☺️

Explanation:

5)Haematite

6)Arsenic

7)Iron

8)Copper or Zinc

9)platinum

10)Phosphorus

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Answer 2

Answer:

7.iron

8.copper

9.platinum

10.phosphours