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0 votes0 answer425 views4 Years Ago
Name Any Two Alloys Whose Electrical Conductivity Is Less Than That Of Pure Metals.
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Name Two Metals That Are Obtained By Electrolysis Of Their Chlorides In Molten Form.
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0 votes0 answer358 viewsAmirul Hassan 4 Years Ago
A Green Layer Is Gradually Formed On A Copper Plate When Left Exposed To Air For A Week In A Bathroom. What Could This Green Substance Be?
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0 votes0 answer260 views4 Years Ago
Metals Are Refined By Using Different Methods. Which Of The Following Metals Are Refined By Electrolytic Refining? Au, Cu, Na And K
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Name One Property Which Is Not Shown By Ionic Compounds
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A Piece Of Granulated Zinc Was Dropped Into Copper Sulphate Solution
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0 votes0 answer143 views4 Years Ago
Name One Metal Which Reacts Neither With Cold Water, Nor With Hit Water, But Reacts With Steam To Produce Hydrogen Gas
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Name A Solvent In Which Electrovalent Compounds Are Soluble And A Solvent In Which They Are In Soluble.
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Arrange The Following Metals In The Decreasing Order Of Reactivity Na, K, Cu And Ag.
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0 votes0 answer473 views4 Years Ago
Name Two Metals Which React With Dil.HNO3 To Evolve Hydrogen Gas
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0 votes0 answer312 views4 Years Ago
Which Of The Following Metals Will Melt At Body Temperature (37°C).
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Assertion : Carbon Reacts With Oxygen To Form Carbon Dioxide Which Is An Acidic Oxide. Reason : Non-Metals Form Acidic Oxides
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Assertion : Platinum, Gold And Silver Are Used To Make Jewellery. Reason : Plantinum, Gold And Silver Are Reactive Least Metals.
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Assertion : Food Cans Are Coated With Tin And Not With Zinc. Reason : Zinc Is More Reactive Than Tin
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0 votes0 answer1054 views4 Years Ago
Assertion : When Zinc Is Added To A Solution Of Iron (II) Sulphate, No Change Is Observed. Reason : Zinc Is Less Reactive Than Iron.
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0 votes0 answer3227 views4 Years Ago
Assertion : Electrical Wires Cannot Be Made By Copper. Reason : Copper Is A Bad Conductor Of Electricity
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0 votes0 answer235 views
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0 votes0 answer156 views4 Years Ago
Galvanisation Is A Method Of Protecting Iron From Rusting By Coating It With A Thin Layer Of
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