A) Atomic mass |
B) Atomic number |
C) Atomic size |
D) Atomic volume |
B) Atomic number |
1). The purest form of iron is :
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2). When an iron nail gets rusted, iron oxide is formed :
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3). Liquefied Petroleum Gas consists of mainly :
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4). The metal that is present in photo films is :
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5). The main constituents of pearls are :
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6). An element that does not occur in nature but can be produced artificially is :
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7). Which of the following pairs is not correctly matched? Mineral Industrial use
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8). The element found on the surface of the moon is :
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9). The average salinity of sea water is :
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10). The metallic constituents of hard water are :
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