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Andhra Pradesh SSC (Class 10) Metals and Non-metals — practice questions — page 2

Explore 102 free Metals and Non-metals questions in Andhra Pradesh SSC (Class 10) Science and Technology. Open each question or exercise to read its content, reference answers and available explanation.

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Metals and Non-metals questions and exercises with answers

Showing questions 31–60 of 102.

Sodium is stored under kerosene because it:Read the answer and worked solution →Iron nail dipped in copper sulfate solution shows colour change because:Read the answer and worked solution →Which metal will NOT displace hydrogen from dilute HCl?Read the answer and worked solution →Which is the most reactive metal among these?Read the answer and worked solution →Reaction of Mg with steam gives:Read the answer and worked solution →When magnesium burns in air the ash that forms is:Read the answer and worked solution →In the formation of NaCl from Na and Cl, sodium:Read the answer and worked solution →Ionic compounds conduct electricity:Read the answer and worked solution →The ore of aluminium is:Read the answer and worked solution →Highly reactive metals like sodium and aluminium are extracted from their ores by:Read the answer and worked solution →Heating a sulfide ore strongly in excess air converts it to an oxide. This step is called:Read the answer and worked solution →Iron is protected from rusting by coating it with zinc. This process is called:Read the answer and worked solution →Calcination differs from roasting in that calcination is performed:Read the answer and worked solution →Which property is typical of metals?Read the answer and worked solution →Which of these is a non-metal?Read the answer and worked solution →Metal + O₂ usually yields a:Read the answer and worked solution →Most-reactive-first activity series:Read the answer and worked solution →Calcination involves heating ore:Read the answer and worked solution →Corrosion of iron produces:Read the answer and worked solution →Sort each element as Metal or Non-metal.Read the answer and worked solution →Match each metal to its principal ore.Read the answer and worked solution →Pop only the metals that lie at the bottom of the reactivity series.Read the answer and worked solution →Balance iron + steam → iron oxide + hydrogen.Read the answer and worked solution →Balance sodium reacting with water.Read the answer and worked solution →Balance: zinc + hydrochloric acid.Read the answer and worked solution →Balance sodium burning in oxygen.Read the answer and worked solution →Balance copper turning black in air.Read the answer and worked solution →Balance the formation of aluminium oxide.Read the answer and worked solution →Balance the thermite reaction.Read the answer and worked solution →Balance concentrated HNO₃ acting on copper.Read the answer and worked solution →

Worked practice questions

Sodium is stored under kerosene because it:

  1. evaporates in air
  2. reacts with air, water
  3. denser than kerosene
  4. unstable to light
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Correct answer: B. reacts with air, water

Sodium catches fire on contact with moisture in air. Kerosene seals it from both air and water.

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Iron nail dipped in copper sulfate solution shows colour change because:

  1. No reaction occurs
  2. Fe is more reactive than Cu
  3. Cu corrodes iron
  4. Cu is more reactive than Fe
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Correct answer: B. Fe is more reactive than Cu

Iron is above copper in the reactivity series, so it displaces copper from CuSO₄: Fe + CuSO₄ → FeSO₄ + Cu. Solution turns from blue to green; nail gets a brown coating.

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Which metal will NOT displace hydrogen from dilute HCl?

  1. zinc
  2. iron
  3. copper
  4. magnesium
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Correct answer: C. copper

Copper sits below hydrogen in the reactivity series, so it cannot displace H₂ from a dilute acid. The other three are above hydrogen and do.

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