Chemistry Solved Questions and Answers Set 10

January 25, 2019 entranciology Chemistry Solved Questions and Answers Sets, Solved Questions and Answers Sets For Competitive Exams 0

Q.1:- Gas used for artificial ripening of fruits is ?

  1. Ethane
  2. Acetylene
  3. Propane
  4. Methane

Q.2:- Vital force theory was put forward by ?

  1. Berzelius
  2. Wohler
  3. Grignard
  4. Kolbe

Q.3:- A fractionating column is used in ?

  1. Sublimation
  2. Distillation
  3. Fractional Distillation
  4. Chromatography

Q.4:- Which one among the following is used in making lead pencils ?

  1. Charcoal
  2. Graphite
  3. Coke
  4. Carbon Black

Q.5:- Sublimation is a process in which a solid ?

  1. Changes into another allotropic form
  2. Changes into liquid form
  3. Changes into vapour form
  4. None of the above

Q.6:- Which of the following is formed by strong heating of potassium permanganate ?

  1. O2
  2. Mn
  3. H2
  4. None of these

Q.7:- The conversion of atmospheric Nitrogen into compounds is called ?

  1. Nitrogen conversion
  2. Nitrogen absorption
  3. Nitrogen fixation
  4. Nitrogenation
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Q.8:- Which is the catalyst used in manufacture of Sulphuric Acid by lead chamber process ?

  1. Fe
  2. Ni
  3. Pb
  4. Oxides of Nitrogen

Q.9:- Photoconductors of Xerox machine ?

  1. Black Phosphorous
  2. Tellurium
  3. Mercury
  4. Selenium

Q.10:- Which of the following is metallic in nature ?

  1. F
  2. Cl
  3. Br
  4. I

Q.11:- The structure of Ozone is ?

  1. Pyramidal
  2. Tetrahedral
  3. Octahedral
  4. Angular

Q.12:- Which one is a good conductor of electricity ?

  1. Red phosphorous
  2. Black phosphorous
  3. Violet phosphorous
  4. Scarlet phosphorous

Q.13:- Nitrogen combines with metal to form ?

  1. Nitride
  2. Nitrite
  3. Nitrate
  4. Nitrosyl Chloride

Q.14:- Which of the following oxides is amphoteric in nature ?

  1. CO2
  2. SiO2
  3. SnO2
  4. CaO

Q.15:- The variety of Coal having the highest carbon content is ?

  1. Anthracite
  2. Bituminous
  3. Lignite
  4. Peat
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Q.16:- Which one of the following forms of carbon is used in sugar industry ?

  1. Lamp Black
  2. Wood Charcoal
  3. Animal Charcoal
  4. Graphite

Q.17:- Sapphire is a mineral of ?

  1. Cu
  2. Ca
  3. Fe
  4. Al

Q.18:- The name is Lavoisier is associated with the gas ?

  1. Oxygen
  2. Carbon Monoxide
  3. Carbon Dioxide
  4. Nitrogen

Q.19:- Hydrogen peroxide decomposes to give ?

  1. H2 and O2
  2. H2 and H2O
  3. O2 and H2O
  4. H2, O2 and H2O

Q.20:- Temporary harness of water is due to the presence of ?

  1. Magnesium Bicarbonate
  2. Calcium Carbonate
  3. Calcium Chloride
  4. Magnesium Sulphate

Q.21:- The Iron obtained from blast furnace is ?

  1. Soft Iron
  2. Pig Iron
  3. Steel
  4. Wrought Iron

Q.22:- Which of the following halogens has the greatest electron affinity ?

  1. Iodine
  2. Bromine
  3. Chlorine
  4. Fluorine
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Q.23:- Which of the following is not a source of Sulphur ?

  1. Carnalite
  2. Galena
  3. Gypsum
  4. Cinnabar

Q.24:- Oxygen molecule shows ?

  1. Diamagnetism
  2. Paramagnetism
  3. Ferromagnetism
  4. Ferrimagnetism

Q.25:- Which of the following is responsible for blue baby syndrome ?

  1. Fluoride
  2. Nitrate
  3. Arsenic
  4. Lead

 

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