Railways General Science & Technology Neutralisation and Salts Sample Paper

done Neutralisation and Salts Sample Test Paper-17 Total Questions - 20    [Download]

• question_answer1)
  Which one of-the following salts when dissolved in water makes the solution basic?
  A)
   Sodium chloride
  done clear
  B)
   Copper sulphate
  done clear
  C)
   Ferric chloride
  done clear
  D)
          Sodium acetate
  done clear
  View Answer play_arrow

• question_answer2)
  Solution in test tubes containing \[{{H}_{2}}O\] and aqueous \[NaOH\] can be differentiated with the help of
  A)
   Red litmus        
  done clear
  B)
   blue litmus
  done clear
  C)
  \[N{{a}_{2}}C{{O}_{3}}\]      
  done clear
  D)
  \[HCI\] (aqueous)
  done clear
  View Answer play_arrow

• question_answer3)
  Which one among the following is not a property of salt?
  A)
   Salts have ordered packing arrangements called lattices
  done clear
  B)
   Salts have low melting points but high boiling points
  done clear
  C)
   Salts are brittle
  done clear
  D)
   Salts conducts electricity when dissolved in water or even in the molten state
  done clear
  View Answer play_arrow

• question_answer4)

  Consider the following statements

  1. Limestone, chalk and marble are different forms of calcium carbonate

  2. When pH of rain water is less than 5.6, it is called acid rain.

  3. Human body works with in the pH range of 7.0 to 7.8

  Which of the statements given above are correct?

  A)
   1 and 2       
  done clear
  B)
   1 and 3
  done clear
  C)
   2 and 3   
  done clear
  D)
   1, 2 and 3
  done clear
  View Answer play_arrow

• question_answer5)
  A milkman added a small amount of baking soda to fresh milk which had pH close to 6. As a result, pH of the medium
  A)
   Became close to 2
  done clear
  B)
   Became close to 4
  done clear
  C)
   Did not undergo any change
  done clear
  D)
   Became close to 8
  done clear
  View Answer play_arrow

• question_answer6)
  The compound used for neutralisation of excess \[HCI\] in the stomach is
  A)
   \[NaHC{{O}_{3}}\]     
  done clear
  B)
   \[Mg{{(OH)}_{2}}\]
  done clear
  C)
   Both [a] and [b]
  done clear
  D)
   None of these
  done clear
  View Answer play_arrow

• question_answer7)
  The aqueous solution of which of the following salt will have \[OH-\] ions?
  A)
   \[NaCI\]           
  done clear
  B)
   \[N{{a}_{2}}S{{O}_{4}}\]
  done clear
  C)
   \[C{{H}_{3}}COONa\]
  done clear
  D)
   None of these
  done clear
  View Answer play_arrow

• question_answer8)

  Which of the following phenomenon occur when a small amount of acid is added to water?

  (i) Ionisation

  (ii) Dilution

  (iii) Neutralisation

  (iv) Salt formation

  A)
   (i) and (ii)         
  done clear
  B)
   (ii) and (iii)
  done clear
  C)
   (i) and (iii)        
  done clear
  D)
   (ii) and (iv)
  done clear
  View Answer play_arrow

• question_answer9)
  Which of the following substances will not give carbon dioxide and treatment with dilute acid?
  A)
   Marble 
  done clear
  B)
   Lime stone
  done clear
  C)
   Lime               
  done clear
  D)
   Baking soda
  done clear
  View Answer play_arrow

• question_answer10)
  Identify the substance, having the property of deliquescence
  A)
   Gypsum
  done clear
  B)
   Hydrated calcium chloride
  done clear
  C)
   Quick lime
  done clear
  D)
   conc. sulphuric acid
  done clear
  View Answer play_arrow

• question_answer11)
  Which one of the following types of medicines is used for treating indigestion?
  A)
   Antibiotic         
  done clear
  B)
   Antacid
  done clear
  C)
   Analagic          
  done clear
  D)
   Antiseptic
  done clear
  View Answer play_arrow

• question_answer12)
  Soda acid fire extinguishes the fire by
  A)
   Cutting the supply of air
  done clear
  B)
   Raising ignition temperature
  done clear
  C)
   Removing combustion substance
  done clear
  D)
   None of these
  done clear
  View Answer play_arrow

• question_answer13)
  The formula of washing soda is
  A)
   \[NaHC{{O}_{3}}\]     
  done clear
  B)
   \[N{{a}_{2}}C{{O}_{3}}.{{H}_{2}}O\]
  done clear
  C)
   \[N{{a}_{2}}C{{O}_{3}}\]     
  done clear
  D)
          \[N{{a}_{2}}C{{O}_{3}}.10{{H}_{2}}O\]
  done clear
  View Answer play_arrow

• question_answer14)
  The substance which on treating with chlorine, yields] bleaching powder is
  A)
   Quick lime       
  done clear
  B)
   lime stone
  done clear
  C)
   slaked lime       
  done clear
  D)
   gypsum
  done clear
  View Answer play_arrow

• question_answer15)
  If tartaric acid is not added in baking powder, the cake will taste bitter due to the presence of
  A)
   Sodium hydrogen carbonate
  done clear
  B)
   Sodium carbonate
  done clear
  C)
   Carbon dioxide
  done clear
  D)
   Same unreacted tartaric acid
  done clear
  View Answer play_arrow

• question_answer16)
  Milk of magnesia is
  A)
   Solid magnesium oxide
  done clear
  B)
   Insoluble magnesium hydroxide
  done clear
  C)
   Soluble magnesium hydroxide
  done clear
  D)
   Insoluble magnesium carbonate
  done clear
  View Answer play_arrow

• question_answer17)
  Calcium phosphate is present in tooth enamel, its nature is
  A)
   Basic   
  done clear
  B)
          amphoteric
  done clear
  C)
   Neutral
  done clear
  D)
   None of these
  done clear
  View Answer play_arrow

• question_answer18)
  Which of the following salts does not contain any water of crystallisation?
  A)
   Blue vitriol       
  done clear
  B)
          Washing soda
  done clear
  C)
   Baking soda
  done clear
  D)
   Gypsum
  done clear
  View Answer play_arrow

• question_answer19)
  The role of quick lime in soda lime (mixture) is to
  A)
   Absorb moisture present in soda lime
  done clear
  B)
   Increase the efficiency of soda lime
  done clear
  C)
   Absorb moisture present in soda lime
  done clear
  D)
   Take part in reaction with\[NaOH\]
  done clear
  View Answer play_arrow

• question_answer20)
  Which of the following does not form an acid salt?
  A)
   Phosphoric acid
  done clear
  B)
   Carbonic acid
  done clear
  C)
   Hydrochloric acid          
  done clear
  D)
   Sulphuric acid
  done clear
  View Answer play_arrow