Chemistry (General Science): All SSC Exams Previous Years Questions Papers Solved Part 6

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Q.1:- Molasses a by-product in the manufacture of sugar is converted into ?

  1. Alcohol
  2. Paper
  3. Fuel
  4. Pulp

Q.2:- An inert gas mixed with Oxygen given to patients suffering from restricted breathing is ?

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

Q.3:- Ozone depletion in the atmosphere is mainly caused by ?

  1. Sulphur Dioxide
  2. Nitrogen Dioxide
  3. Hydrogen Sulphide
  4. Chlorofluorocarbon

Q.4:- Iodine can be separated from a mixture of Iodine and Potassium Chloride by ?

  1. Sedimentation
  2. Filtration
  3. Sublimation
  4. Distillation

Q.5:- The chemical substance present in bones and teeth is ?

  1. Calcium Phosphate
  2. Calcium Chloride
  3. Calcium Sulphate
  4. Calcium Borate

Q.6:- Bakelite is a copolymer of Phenol and ?

  1. Formaldehyde
  2. Acetaldehyde
  3. Benzaldehyde
  4. Cinnaldehyde

Q.7:- A matured mammalian cell without nucleus is ?

  1. Lymphocyte
  2. Erythrocyte
  3. Spermatozoan
  4. Oocyte

Q.8:- The two metal ions that cause hardness to water are ?

  1. Calcium, Magnesium
  2. Sodium, Calcium
  3. Sodium, Potassium
  4. Sodium, Magnesium

Q.9:- An element that does not occur in nature but can be produced artificially is ?

  1. Thorium
  2. Radium
  3. Plutonium
  4. Uranium

Q.10:- The manufacture of Iron from Iron ore involves the process of ?

  1. Oxidation
  2. Reduction
  3. Fractional Distillation
  4. Electrolysis

Q.11:- The chemical used in development photographic films is ?

  1. Silver Bromide
  2. Hypo
  3. Sodium Sulphate
  4. Hydroquinone

Q.12:- The process by which milk is converted to curd is called ?

  1. Pasteurization
  2. Vernalization
  3. Fermentation
  4. Retting

Q.13:- Alcohol prepared by the distillation of wood is ?

  1. Propyl Alcohol
  2. Methyl Alcohol
  3. Ethyl Alcohol
  4. Glycerolx

Q.14:- The most common cause of pollution of air is ?

  1. Carbon Dioxide
  2. Carbon Monoxide
  3. Sulphur Dioxide
  4. Smoke

Q.15:- The name of unreactive gas is ?

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

Q.16:- The fat of a common mussel secretes a sticky glue that can be used to make heart implants. The unique chemical compound present in the glue is ?

  1. Amino Phenyl Alanine
  2. Hydroxy Phenyl Alanine
  3. Phenyl Alanine
  4. Dihydroxy Phenyl Alanine

Q.17:- The important metal used with Iron to produce stainless steel is ?

  1. Aluminium
  2. Chromium
  3. Tin
  4. Carbon
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Q.18:- Exposure to mixtures of chemicals are greater than expected on the basis of effects of exposure to each chemical individually. This is known as ?

  1. Additives
  2. Antagonism
  3. Synergism
  4. Independent

Q.19:- Atoms of different elements have ?

  1. Same atomic number and same electronic configuration
  2. Different atomic number and same electronic configuration
  3. Different atomic number and different number of valence electrons
  4. Same number of electrons and neutrons

Q.20:- Who developed the model of atomic structure ?

  1. Bohr and Rutherford
  2. Volta
  3. Alfred Nobel
  4. Faraday

Q.21:- The element absorbed both in Cation and Anion form is ?

  1. Sulphur
  2. Nitrogen
  3. Calcium
  4. Phosphorus

Q.22:- The wire of flash bulbs is made up of ?

  1. Mg
  2. Ba
  3. Cu
  4. Ag

Q.23:- The alkaloid naturally found in coffee, cocoa and cola nut is ?

  1. Cocaine
  2. Morphine
  3. Tannin
  4. Caffeine

Q.24:- Sodium Carbonate is commonly known as ?

  1. Baking Soda
  2. Washing Soda
  3. Caustic Soda
  4. Caustic Potash

Q.25:- Which one of the following mineral does not contain Oxygen ?

  1. Haematite
  2. Bauxite
  3. Cryolite
  4. Calcite

 

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