01.
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The total number of Protons and Neutrons inside the nucleus of an atom called ? Ans : Mass Number |
02.
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What is known as the “King of Poison” ? Ans : Arsenal |
03.
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The most abundant chemical element is ? Ans : Hydrogen |
04.
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First elements in periodic table ? Ans : Hydrogen |
05.
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The element without neutrons inside the nucleus ? Ans : Hydrogen |
06.
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The first purely synthetic fiber was ? Ans : Nylon |
07.
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The chemical used in the Blood bank to prevent blood coating ? Ans : Sodium Citrate |
08.
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The element which has no Neutron ? Ans : Hydrogen |
09.
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Allotrope’s of Carbone ? Ans : Graphite and Diamond |
10.
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First artificial element ? Ans : Technetium |
11.
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Which metal is known as king of metals ? Ans : Gold |
12.
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King of Chemicals ? Ans : Sulfuric Acid |
13.
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Laughing Gas ? Ans : Nitrous Oxide |
14.
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Ice that float on the surface of the sea water is called ? Ans : Drift Ice |
15.
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Which chemical is used for cloud seeding ? Ans : Silver Iodide and Dry Ice |
16.
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Man-made elements are called ? Ans : Transuranic Element |
17.
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Most complex natural element is ? Ans : Uranium |
18.
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Zink cotted iron is called ? Ans : Galvanized Iron |
19.
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Absolute Zero is calculated as ? Ans : -273 Degree Centigrade |
20.
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The elements which have the same mass number and different atomic number is called ? Ans : Isobars |
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