MCQ Class 10 Science Chapter 3 Metals and Non-Metals Advertisement MCQ’s For All Chapters – Science Class 10th 1. Calcium reacts with water to form:CaO and H₂CaCO₃ and H₂Ca(OH)₂ and H₂CaCl₂ and H₂Question 1 of 152. Magnesium reacts with:Cold water vigorouslyHot water slowlyCold water very slowlySteam onlyQuestion 2 of 153. Aluminium reacts with steam to produce:Al₂O₃ and H₂Al(OH)₃ and H₂AlCl₃ and H₂Al₂(SO₄)₃ and H₂Question 3 of 154. Which metals do not react with water at all?Zinc and AluminiumLead, Copper, Silver, GoldIron and CopperSodium and PotassiumQuestion 4 of 155. Which gas is evolved when metals react with dilute acids?OxygenCarbon dioxideHydrogenNitrogenQuestion 5 of 156. Which acid does not generally produce hydrogen gas when reacting with metals?Hydrochloric acidNitric acidSulphuric acidAcetic acidQuestion 6 of 157. The reactivity of metals with dilute acids decreases in the order:Mg > Zn > Fe > AlZn > Mg > Fe > AlMg > Al > Zn > FeAl > Mg > Fe > ZnQuestion 7 of 158. Aqua regia is a mixture of:HCl and H₂SO₄ (3:1)HNO₃ and H₂SO₄ (3:1)HCl and HNO₃ (3:1)HCl and HNO₃ (1:3)Question 8 of 159. Which acid mixture can dissolve gold?HCl + H₂SO₄HCl + HNO₃H₂SO₄ + HNO₃H₂SO₄ + H₃PO₄Question 9 of 1510. In displacement reactions, a more reactive metal:Forms oxidesDisplaces less reactive metal from salt solutionConverts into ionsBecomes nobleQuestion 10 of 1511. Iron nail placed in copper sulphate solution becomes coated with:ZincIronCopperAluminiumQuestion 11 of 1512. The most reactive metal in the reactivity series is:CalciumPotassiumSodiumAluminiumQuestion 12 of 1513. Which metals do not react with oxygen even at high temperature?Iron and CopperSilver and GoldAluminium and ZincLead and MercuryQuestion 13 of 1514. Metals like sodium and potassium are kept in kerosene to prevent:MeltingOxidationElectrical conductionDuctility lossQuestion 14 of 1515. Ionic compounds have:Low melting pointsHigh melting and boiling pointsNo definite melting pointLow boiling pointsQuestion 15 of 15 Loading...
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