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SURA PUBLICATION-SELF-EVALUATION 1 MARKS-State statement (CHEMISTRY)
- Two elements sometimes can form more than one compound .
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- Ionic radius increases across the period from left to right .
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- When silica gel is kept open , it absorbs moisture from the ai...
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- Silver metal can displace hydrogen gas from nitric acid.
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- Consumption of ethanol affects our central nervous system .
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- Molar mass of CO(2) is 42g.
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- Electron affinity is not a periodic property .
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- Sodium chloride dissolved in water forms a non - aqueous solut...
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- Periodical removal of one of the products of a reversible react...
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- The gram atomic mass of an element has no unit
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- Aluminium is very good oxidising agent
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- A + BC to AC +B is a souble displacement reaction .
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- Detergents are sodium salts of sulphonic acids .
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- An electron has mass that is very much less than proton.
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- A1 wires are used as electric cables due to their silvery white colour...
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- Solutions which contains three components are called binary solution.
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- Both physical and chemical changes attain equillibrium.
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