Class X

KOH is used in making of
  1. drain cleaner
  2. antacid
  3. cement
  4. liquid soap
PH (power of Hydrogen) value of black coffee is
  1. 7
  2. 8
  3. 3
  4. 5
Amount of Hydrochloric Acid (HCl) secreted daily by gastric glands is
  1. 1 lit
  2. 3 lit
  3. 2 lit
  4. 4 lit
If concentration of H+ is greater than 1 x 10-7 then solution is
  1. neutral
  2. basic
  3. acidic
  4. aqueous
If pH value is greater than 7, then solution is
  1. acidic
  2. basic
  3. neutral
  4. salty
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