Class X

Which of the following solutions is the most basic?
  1. pH = 8.2
  2. pH = 10.2
  3. pH = 11.2
  4. pH = 10.5
The Ph of a solution of HCL is 4. This shows that the molarity of the solution is
  1. 4.0M
  2. 0.4M
  3. 0.0001M
  4. 0.001M
Which one of the following will turn blue litmus red?
  1. Vinegar
  2. Lime water
  3. Baking soda solution
  4. Washing soda solution
Acids ionize in water to produc
  1. OH- ions
  2. H+ ions
  3. SO4-2 ions
  4. H2O molecules
Which one of the following is acidic?
  1. lemon juice
  2. tomatoes
  3. milk
  4. all
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