A) tin |
B) lead |
C) zinc |
D) chromium |
C) zinc |
1). Which of the following metals was first discovered by man?
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2). Among the various allotropes of carbon :
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3). Which of the following is the correct sequence of the following elements in increasing order of their relative densities? 1. Mercury 2. Gold 3. Lead 4. Aluminium
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4). Which one of the following is the basis of modern periodic table?
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5). The purest form of iron is :
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6). When an iron nail gets rusted, iron oxide is formed :
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7). Liquefied Petroleum Gas consists of mainly :
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8). The metal that is present in photo films is :
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9). The main constituents of pearls are :
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10). An element that does not occur in nature but can be produced artificially is :
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