Olympiad – Class X – Science - Che - Acids, Bases and Salts

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Question - 1

Identify a compound which contains replaceable hydrogen.

  • A An acid
  • B A base
  • C A salt 
  • D Both (A) and (B)

Question - 2

Which acid is present in an apple?

  • A Citric add
  • B Malic acid
  • C Tartaric acid
  • D Formic acid

Question - 3

Which of the following is a mineral acid?

  • A HCl
  • B H2SO4
  • C HNO3
  • D All of the above

Question - 4

Which acid completely dissociates when dissolved in water?

  • A An oxyacid
  • B A strong acid
  • C A weak acid
  • D A hydraacid

Question - 5

Which acid is weak among mineral acids?

  • A H2SO4
  • B H2CO3
  • C HCl
  • D HNO3

Question - 6

Which of the following is a strong acid?

  • A Lactic acid
  • B Ascorbic acid
  • C Formic acid
  • D Sulphuric acid

Question - 7

Which of the following is made up of bases?

  • A Antacid tablet
  • B Soap
  • C Toothpaste
  • D All of the above

Question - 8

Which of the following is formed by the reaction of an acid with a base?

  • A A salt
  • B An indicator
  • C A vitamin
  • D All of the above

Question - 9

Identify the salt which contains both negative or positive ions.

  • A A basic salt
  • B A normal salt
  • C An acidic salt
  • D A double salt

Question - 10

Which of the following is a strong base?

  • A Ammonium hydroxide
  • B Sodium hydroxide
  • C Magnesium hydroxide
  • D Copper hydroxide