Class X

The strength of acid depends upon
  1. density of the acid
  2. oxygen atoms present
  3. number leof hydrogen atoms present in the molecu
  4. concentration of H+ ions furnished by the acid
Acids ionize in water to produc
  1. OH- ions
  2. H+ ions
  3. SO4-2 ions
  4. H2O molecules
The difference of molecules of water in gypsum and PoP is
  1. 5/2
  2. 2b
  3. 3/2
  4. 1/2
Which one of the following will turn blue litmus red?
  1. vinegar
  2. lime water
  3. baking soda solution
  4. Washing soda solution
Methyl orange is
  1. Pink in acidic medium, yellow in basic medium
  2. Yellow in acidic medium, pink in basic medium
  3. Colourless in acidic medium, pink in basic medium
  4. Pink in acidic medium, colourless in basic medium.
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