Chemistry Solved Questions and Answers Set 14

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

Q.1:- The chemical name of ‘Hypo’ commonly used in photography is ?

  1. Sodium Thiosulphate
  2. Silver Nitrate
  3. Sodium Nitrate
  4. Silver Iodide

Q.2:- Which of the following is a carbonate ore ?

  1. Cassiterite
  2. Pyrolysite
  3. Diaspore
  4. Malachite

Q.3:- Which one of the following elements shows highest oxidation state ?

  1. Pt
  2. Rh
  3. Os
  4. Fe

Q.4:- Hydrogen peroxide does not act as ?

  1. An Acid
  2. Base
  3. Oxidising Agent
  4. Reducing Agent

Q.5:- Which of the following metals exhibits similarity in properties of Aluminium ?

  1. Ba
  2. Be
  3. Ca
  4. Sr

Q.6:- Which of the following is ferrous alloy ?

  1. Invar
  2. Solder
  3. Magnalium
  4. Type Steel

Q.7:- Which of the following is not an ore of Iron ?

  1. Magnetite
  2. Limonite
  3. Caniterite
  4. None of these

Q.8:- In manufacture of glass the addition of MnO2 gives ?

  1. Yellow Colour
  2. Red Colour
  3. Violet Colour
  4. Pink Colour
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Q.9:- Which one of the following is the strongest base ?

  1. AsH3
  2. SbH3
  3. PH3
  4. NH3

Q.10:- The elements of group VA are generally known as ?

  1. Normal elements
  2. Transition elements
  3. Halogens
  4. Pnicogens

Q.11:- Quartz is a crystalline variety of ?

  1. Silicon
  2. Silicon Carbide
  3. Sodium Silicate
  4. Silica

Q.12:- Bleaching powder is obtained by the interaction of Cl2 and ?

  1. Dilute solution of Ca(OH)2
  2. Dry Cao
  3. Concentrated solution of Ca(OH)2
  4. Dry slaked lime

Q.13:- Which of the following is not chalcogen ?

  1. O
  2. Na
  3. S
  4. Se

Q.14:- Bleaching action of SO2 is due to ?

  1. Oxidation
  2. Reduction
  3. Hydrolysis
  4. Electrolysis

Q.15:- Which one of the following formed from sea water ?

  1. Halogen
  2. Chlorine
  3. Oxygen
  4. Sulphur
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Q.16:- Bromine gas turns starch iodine paper ?

  1. Blue
  2. Red
  3. Colourless
  4. Yellow

Q.17:- The noble gas used for treatment of cancer is ?

  1. Helium
  2. Radon
  3. Krypton
  4. Argon

Q.18:- Noble gases are ?

  1. Monoatomic
  2. Diatomic
  3. Triatomic
  4. All of the above

Q.19:- Which one of the following is not an essential micronutrient for plants ?

  1. Boron
  2. Zinc
  3. Sodium
  4. Copper

Q.20:- Which of the following is not a noble gas ?

  1. Hydrogen
  2. Helium
  3. Neon
  4. Argon

Q.21:- A mixture of Naphthalene and Benzoic acid can be separated by ?

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

Q.22:- A mixture of water and NaCl can be separated by ?

  1. Sublimation
  2. Evaporation
  3. Decantation
  4. Filtration

Q.23:-The common name of propanone is ?

  1. Acetone
  2. Dimethyl Ketone
  3. Ethyl Methyl Ketone
  4. Diethyl Ketone
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Q.24:- Knocking sound is produced in the engine when the fuel contains ?

  1. Water
  2. Lubricating oil
  3. Straight chained hydrocarbon
  4. Iso-Carbon atoms

Q.25:- The presence of unsaturation in an organic compound can be tested with ?

  1. Schiff’s reagent
  2. Tollen’s reagent
  3. Fehling’s solution
  4. Baeyer’s reagent

 

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