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Karnataka SSLC (Class 10) Science — practice by topic

Browse 131 questions across 10 Science topics. Choose what you want to revise, then open a question to check its answer and worked solution.

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Science topics

Metals and Non-metals (22)Metals & Non-metals (22)Acids, Bases and Salts (17)Life Processes (17)Chemical Reactions and Equations (16)Electricity (15)Magnetic Effects of Electric Current (15)Our Environment (15)Control and Coordination (14)Biology (1)

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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 →

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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