Class VII

Vinegar contains an acid acetic acid which has other name of
  1. Ethanoic acid
  2. Ethanoic acid
  3. Citric acid
  4. Carbonic acid
Substance which is being dissolved in a liquid is called
  1. Solute
  2. Solvent
  3. Mixture
  4. Product
Bee sting is acidic in nature which can be neutralize and make less painful by
  1. Soap
  2. Lemon juice
  3. Vinegar
  4. Antacid
PH values less than 7 are by nature
  1. Acidic
  2. Basic
  3. Neutral
  4. None of above
A dye or a mixture of dye which changes color according to acidity or alkalinity of any substance is called
  1. Indicator
  2. pH scale
  3. pH meter
  4. Balance scale
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