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This set of General Science Multiple Choice Questions & Answers (MCQs) focuses on Chemistry Set 5

Q1 | The aqueous solution of which among the following acids is called Vinegar?
  • Oxalic acid
  • Citric acid
  • Acetic acid
  • Hydrochloric acid
Q2 | Which among the following is the correct decreasing of bioelements in Human Body?
  • oxygen, hydrogen, Carbon, nitrogen, calcium, and phosphorus
  • oxygen, carbon, nitrogen, hydrogen, calcium, and phosphorus
  • oxygen, carbon, hydrogen, nitrogen, calcium, and phosphorus
  • carbon, oxygen, hydrogen, nitrogen, calcium, and phosphorus
Q3 | Which among the following happens in an oxidation reaction ?
  • Electrons are gained
  • Electrons are lost
  • Protons are gained
  • Protons are lost
Q4 | Identify the thermosetting plastic from the given options:
  • Polythene
  • Bakelite
  • PVC
  • Casseine
Q5 | White Phosphorous is represented by which among the following symbols?
  • P1
  • P2
  • P3
  • P4
Q6 | Which among the following is called Laughing Gas popularly?
  • Nitric oxide
  • Nitrous oxide
  • Nitrogen penta oxide
  • Nitrogen
Q7 | Identify the non-metallic mineral from the given options:
  • Manganese
  • Magnesium
  • Silica
  • Bauxite
Q8 | Which among the following are constituents of Brass?
  • Zinc and Copper
  • Iron and Zinc
  • Copper and Nickel
  • Iron and Copper
Q9 | Which among the following acids is abundant in Grapes, Bananas and Tamarind?
  • Lactic Acid
  • Oxalic Acid
  • Salicylic Acid
  • Tartaric Acid
Q10 | Which among the following gas was leaked at Bhopal during the Bhopal gas tragedy at 2-3 December 1984?
  • Methyl isocyanide
  • Methyl isocyanate
  • methyl isochloride
  • methyl isochlorate
Q11 | In the manufacture of Vanaspati ghee from vegetable oils, which among the following gasis used?
  • N2
  • CO2
  • H2
  • Ne
Q12 | When a tubelight breaks, a cracking sound is produced because ____?
  • Pressure inside the lamp is less than atmospheric pressure
  • Pressure inside the lamp is more than atmospheric pressure
  • The lamp is filled with reactive gases
  • The lamp is filled with mercury vapour
Q13 | Which among the following is the objective of the Methyl tert-butyl ether (MTBE) mixingwith Petroleum?
  • Raise Octane Number
  • Antioxidant Stabilizer
  • Lead Scavanger
  • Fuel Dye
Q14 | The most important contributor of sea salt is ____?
  • Rivers
  • Salty Rocks at bottom of sea
  • Aquatic animals in Sea
  • Atmosphere around sea
Q15 | Which among the following elements are generally find in free state?
  • Group 11 elements
  • Group 12 elements
  • Group 13 elements
  • Group 14 elements
Q16 | Which among the following would cause the bright red colur due to bursting of crackers?
  • Strontium
  • Sodium
  • Suphur
  • Magnesium
Q17 | Who among the following scientists had discovered Radium?
  • Marie Sklodowska-Curie and Pierre Curie
  • André-Louis Debierne
  • Kasimir Fajans
  • Oswald Helmuth Göhring
Q18 | Who among the following had given the Atomic Theory?
  • Benzamin Franklin
  • Madam curie
  • Albert Einstien
  • John Dalton
Q19 | Which among the following oxides cause the Acid rain ?
  • Carbon monoxide and carbon dioxide
  • Nitrous oxide and sulphur dioxide
  • Carbon dioxide and nitrous oxide
  • Sulphur dioxide and carbon monoxide
Q20 | Which among the following element is an essential constituent of acids?
  • Nitrogen
  • Hydrogen
  • Helium
  • Oxygen
Q21 | Highest percentage of nitrogen is found in which among the following fertilizers among thegiven options?
  • Calcium ammonium nitrate
  • Ammonium nitrate
  • Calcium nitrate
  • Urea
Q22 | Which among the following is popularly called Hypo?
  • Silver bromide
  • Silver nitrate
  • Sodium thiosulphate
  • Sodium phosphate
Q23 | Which among the following is a Noble Gas?
  • Nitrogen
  • Hydrogen
  • Oxygen
  • Helium
Q24 | Which of the following is an anti-knocking compound that has been phased out in manycountries so far?
  • Lead tetrachloride
  • Tetra Ethyl Lead
  • Ethyl acetate
  • None of the above
Q25 | Which among the following is the main constituent of Biogas?
  • Methane
  • Ethane
  • Propane
  • Butane