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56 questions
11
Metals, Minerals, Ores Properties, Uses
Easy
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-0.33
Heaviest metal of the following is made of –
12
Metals, Minerals, Ores Properties, Uses
Easy
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The heaviest metal among the following is:
13
Metals, Minerals, Ores Properties, Uses
Easy
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The costliest metal of the world discovered recently is:
14
Metals, Minerals, Ores Properties, Uses
Easy
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The chemical structure of the pearl is -
15
Metals, Minerals, Ores Properties, Uses
Easy
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The main constituents of pearl are-
16
Metals, Minerals, Ores Properties, Uses
Easy
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Pearl is mainly constituted of-
17
Metals, Minerals, Ores Properties, Uses
Easy
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What are Rubies and Sapphires chemically known as?
18
Metals, Minerals, Ores Properties, Uses
Easy
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The chemical formula of sapphire (Ruby) is:
19
Metals, Minerals, Ores Properties, Uses
Easy
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Which one of the following elements is kept safely in Kerosene oil?
20
Metals, Minerals, Ores Properties, Uses
Easy
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These days yellow lamps are frequently used as street light. Which one of the following is used in these lamps :