Class X

If concentration of H+ is greater than 1 x 10-7 then solution is
  1. neutral
  2. basic
  3. acidic
  4. aqueous
Process in which acids (H+) and bases (OH-) react to form salts and water is called
  1. neutralization
  2. hydrogenation
  3. halogenation
  4. sublimation
Amount of Hydrochloric Acid (HCl) secreted daily by gastric glands is
  1. 1 lit
  2. 3 lit
  3. 2 lit
  4. 4 lit
Phenolphthalein in acidic solution is
  1. colorless
  2. pink colored
  3. yellow colored
  4. orange colored
PH (power of Hydrogen) value of black coffee is
  1. 7
  2. 8
  3. 3
  4. 5
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