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Karnataka SSLC (Class 10) Metals and Non-metals — practice questions

Explore 22 free Metals and Non-metals questions in Karnataka SSLC (Class 10) Science. 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 1–22 of 22.

The property by which metals can be beaten into thin sheets is calledRead the answer and worked solution →Which metal exists as a liquid at room temperature?Read the answer and worked solution →Which non-metal is a good conductor of electricity?Read the answer and worked solution →Metals generally react with oxygen to form oxides that areRead the answer and worked solution →Sodium metal is stored under kerosene oil because itRead the answer and worked solution →Which of these is the most ductile metal?Read the answer and worked solution →When a metal reacts with a dilute acid, the gas usually evolved isRead the answer and worked solution →An oxide that reacts with BOTH acids and bases to give a salt and water is calledRead the answer and worked solution →Which pair of metals reacts violently even with cold water?Read the answer and worked solution →In the reactivity (activity) series, which of these metals is the MOST reactive?Read the answer and worked solution →A more reactive metal placed in the salt solution of a less reactive metal willRead the answer and worked solution →The freshly prepared mixture of concentrated HCl and concentrated HNO₃ in a 3:1 ratio, able to dissolve gold, is calledRead the answer and worked solution →Roasting differs from calcination in that roasting is the heating of an oreRead the answer and worked solution →Metals high in the activity series (Na, Ca, Mg, Al) are extracted from their molten compounds byRead the answer and worked solution →The reaction Fe₂O₃ + 2Al → 2Fe + Al₂O₃ + heat, used to join railway tracks, is known as theRead the answer and worked solution →In the electrolytic refining of copper, the anode and the cathode are respectivelyRead the answer and worked solution →In the experiment on rusting, iron nails rust only in the test tube where the nails are exposed toRead the answer and worked solution →Brass is an alloy ofRead the answer and worked solution →Food cans are coated with tin rather than zinc becauseRead the answer and worked solution →An element reacts with oxygen to give an oxide with a high melting point that is also soluble in water. The element is most likelyRead the answer and worked solution →Why do ionic compounds such as NaCl conduct electricity in the molten state but not when solid?Read the answer and worked solution →Galvanisation protects iron and steel from rusting by coating them with a thin layer ofRead the answer and worked solution →

Worked practice questions

The property by which metals can be beaten into thin sheets is called

  1. malleability
  2. ductility
  3. sonority
  4. conductivity
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Correct answer: A. malleability

1. When a metal is hammered and spreads into a thin sheet without breaking, that property is named. 2. This ability to be beaten into sheets is **malleability** (gold and silver are the most malleable). 3. Being drawn into wires is ductility; producing a ringing sound is sonority. _Source: Karnataka SSLC (KSEEB) Class 10 Science, Ch3 'Metals and Non-metals', §3.1.1_

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Which metal exists as a liquid at room temperature?

  1. sodium
  2. mercury
  3. aluminium
  4. lead
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Correct answer: B. mercury

1. Almost all metals are solids at room temperature. 2. The single exception is **mercury**, which is a liquid at room temperature. 3. Sodium, aluminium and lead are all solids. _Source: Karnataka SSLC (KSEEB) Class 10 Science, Ch3 'Metals and Non-metals', §3.1_

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Which non-metal is a good conductor of electricity?

  1. sulphur
  2. iodine
  3. graphite
  4. phosphorus
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Correct answer: C. graphite

1. Non-metals are generally poor conductors of electricity. 2. The exception is **graphite** (an allotrope of carbon), which conducts electricity. 3. Sulphur, iodine and phosphorus are non-conductors. _Source: Karnataka SSLC (KSEEB) Class 10 Science, Ch3 'Metals and Non-metals', §3.1.2_

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More Science topics

Metals & Non-metalsAcids, Bases and SaltsLife ProcessesChemical Reactions and EquationsElectricityMagnetic Effects of Electric CurrentOur EnvironmentControl and Coordination