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Maharashtra SSC (Class 10) Unit 4B1: Properties of Metals and Non-Metals — practice questions

Explore 43 free Unit 4B1: Properties of Metals and Non-Metals questions in Maharashtra SSC (Class 10) Chemistry. Open each question or exercise to read its content, reference answers and available explanation.

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Unit 4B1: Properties of Metals and Non-Metals questions and exercises with answers

Showing questions 1–30 of 43.

Which metal exists in the liquid state at ordinary room temperature?Read the answer and worked solution →Which metal has the highest melting point among all metals?Read the answer and worked solution →Which nonmetal exists in the liquid state at room temperature?Read the answer and worked solution →Which allotrope of carbon is a good conductor of electricity, unlike other nonmetals?Read the answer and worked solution →Why are metals classified as electropositive elements?Read the answer and worked solution →Sodium metal is stored under kerosene mainly to prevent which event?Read the answer and worked solution →When sodium oxide reacts with water, what type of product is formed?Read the answer and worked solution →Which gas is liberated when sodium reacts rapidly and vigorously with water?Read the answer and worked solution →Why does calcium float on water during its reaction with cold water?Read the answer and worked solution →Aluminium, iron and zinc do not react with cold or hot water but react with which substance?Read the answer and worked solution →Which sequence correctly shows decreasing reactivity of these metals with dilute acids?Read the answer and worked solution →Aqua regia is prepared by mixing concentrated hydrochloric acid and concentrated nitric acid in which ratio?Read the answer and worked solution →When an iron nail is dipped in copper sulphate solution, iron displaces copper. What does this show?Read the answer and worked solution →Why do noble gases like helium, neon and argon not take part in chemical reactions?Read the answer and worked solution →Nonmetals are called electronegative elements because they react by doing what?Read the answer and worked solution →Carbon undergoes partial combustion with oxygen to form which neutral oxide?Read the answer and worked solution →Why can ionic compounds conduct electricity in the molten state but not in the solid state?Read the answer and worked solution →Why do ionic compounds generally have high melting and boiling points?Read the answer and worked solution →Which compound from the chapter's table has the highest melting point?Read the answer and worked solution →Most reactive metals do not occur free in nature but are found mainly in which form?Read the answer and worked solution →Minerals from which a metal can be separated economically are specifically called what?Read the answer and worked solution →The impurities such as soil, sand and rocky matter present along with the ore are called what?Read the answer and worked solution →The froth floatation method of concentration is most suitable for which type of ore?Read the answer and worked solution →In the leaching concentration of bauxite, the ore is soaked in which kind of solution?Read the answer and worked solution →Highly reactive metals such as sodium, calcium and magnesium are extracted by which method?Read the answer and worked solution →During electrolysis of molten sodium chloride, what happens at the cathode?Read the answer and worked solution →Cryolite and fluorspar are added during electrolytic reduction of alumina chiefly to do what?Read the answer and worked solution →Strongly heating a sulphide ore in air to convert it into the oxide is called what?Read the answer and worked solution →Strongly heating a carbonate ore in a limited supply of air to convert it into the oxide is called what?Read the answer and worked solution →In the thermit reaction Fe2O3 + 2Al gives 2Fe + Al2O3, which species is oxidised?Read the answer and worked solution →

Worked practice questions

Which metal exists in the liquid state at ordinary room temperature?

  1. Tungsten
  2. Mercury
  3. Lithium
  4. Magnesium
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Correct answer: B. Mercury

1. Most metals are solids at room temperature. 2. Mercury and gallium are exceptions, existing as liquids. 3. Therefore the liquid metal here is mercury. _Source: Balbharati (Maharashtra Board) Class 10 Science & Technology, Ch 8 "Metallurgy", p.102_

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Which metal has the highest melting point among all metals?

  1. Sodium
  2. Tungsten
  3. Potassium
  4. Gallium
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Correct answer: B. Tungsten

1. Metals generally have high melting and boiling points. 2. Tungsten records the highest melting point at 3422 degrees Celsius. 3. Sodium, potassium and gallium instead have very low melting points. _Source: Balbharati (Maharashtra Board) Class 10 Science & Technology, Ch 8 "Metallurgy", p.102_

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Which nonmetal exists in the liquid state at room temperature?

  1. Carbon
  2. Iodine
  3. Sulphur
  4. Bromine
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Correct answer: D. Bromine

1. Nonmetals are usually solids or gases at room temperature. 2. Bromine is the exception, existing as a liquid. 3. Iodine and sulphur are solids, so the answer is bromine. _Source: Balbharati (Maharashtra Board) Class 10 Science & Technology, Ch 8 "Metallurgy", p.102_

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More Chemistry topics

Periodic Table & Periodic PropertiesChemical Reactions and EquationsMetallurgyUnit 1C1: Periodic Trends in Atomic PropertiesUnit 4C1: Hydrocarbons and Carbon CompoundsUnit 4A1: Types of Chemical ReactionsElements, Compounds and MixturesUnit 4A2: Net Ionic Equations and Balancing