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MHT-CET Elements of Groups 16, 17 and 18 — practice questions

Explore 86 free Elements of Groups 16, 17 and 18 questions in MHT-CET Chemistry. Open each question or exercise to read its content, reference answers and available explanation.

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Elements of Groups 16, 17 and 18 questions and exercises with answers

Showing questions 1–30 of 86.

By which collective name are the Group 16 elements also known?Read the answer and worked solution →The word halogen comes from Greek terms meaning what?Read the answer and worked solution →What percentage of air by volume is oxygen?Read the answer and worked solution →Which formula represents the mineral gypsum?Read the answer and worked solution →Zinc blende, an ore of zinc, has which chemical formula?Read the answer and worked solution →Which compound is the mineral fluorspar?Read the answer and worked solution →Which formula belongs to carnallite found in dried up sea beds?Read the answer and worked solution →What is the half life of astatine, the last halogen?Read the answer and worked solution →Chile saltpetre contains up to 0.2 percent of which iodine compound?Read the answer and worked solution →Which noble gas is the major constituent of the noble gases in dry air?Read the answer and worked solution →The main commercial source of helium is what?Read the answer and worked solution →Helium and neon are found in which radioactive mineral?Read the answer and worked solution →Which valence shell configuration is general for Group 16 elements?Read the answer and worked solution →A halogen atom has which general outer electronic configuration?Read the answer and worked solution →Noble gases other than helium show which valence configuration?Read the answer and worked solution →Why do atomic radii increase down Groups 16, 17 and 18?Read the answer and worked solution →Group 16 elements have lower ionisation enthalpy than Group 15 because Group 15 has what?Read the answer and worked solution →Which Group 16 element is a gas at room temperature?Read the answer and worked solution →Why are the melting and boiling points of oxygen far below those of sulfur?Read the answer and worked solution →Which element has the lowest boiling point of any known substance?Read the answer and worked solution →Noble gas atoms exist in what form?Read the answer and worked solution →Noble gases liquefy only at very low temperatures because only which forces act?Read the answer and worked solution →Which of these Group 16 elements is paramagnetic in its normal state?Read the answer and worked solution →Why cannot oxygen show a high positive oxidation state like +6?Read the answer and worked solution →Liquid hydrogen fluoride (b.p. 293 K) owes its state mainly to what?Read the answer and worked solution →Which is the only oxoacid formed by fluorine?Read the answer and worked solution →Most reactions of fluorine are exothermic because of which bond feature?Read the answer and worked solution →Oxygen has what oxidation state in sodium peroxide, Na2O2?Read the answer and worked solution →Down Group 16, the stability of the +4 oxidation state does what?Read the answer and worked solution →Why does fluorine show only the -1 oxidation state?Read the answer and worked solution →

Worked practice questions

By which collective name are the Group 16 elements also known?

  1. Halogen group
  2. Pnictogen group
  3. Alkaline earths
  4. Chalcogen group
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Correct answer: D. Chalcogen group

Group 16 members are found in many metal ores as oxides and sulfides, so they are called ore forming chalcogens.

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The word halogen comes from Greek terms meaning what?

  1. Acid producer
  2. Metal producer
  3. Light producer
  4. Salt producer
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Correct answer: D. Salt producer

Halo means salt and gene means born, so halogens are salt producing elements.

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What percentage of air by volume is oxygen?

  1. 78.08 %
  2. 20.95 %
  3. 0.04 %
  4. 0.93 %
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Correct answer: B. 20.95 %

Oxygen makes up about 20.95 percent of air by volume.

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More Chemistry topics

ElectrochemistrySolutionsCoordination CompoundsChemical KineticsChemical Bonding and Molecular StructureAldehydes, Ketones and Carboxylic AcidsHydrocarbonsStructure of Atom