Class XI

 If hydrogen (H) of an acid (H+) is partially replaced by a metal, it forms
  1. neutral oxides
  2. amphoteric oxides
  3. acid salt
  4. salt
Consider equation P4O10 + H2O → H3PO4. number of moles of H3PO4 produced by reaction are
  1. 3
  2. 2
  3. 4
  4. 5
 Condensed solid produced during sublimation is
  1. crystals
  2. sublimate
  3. residue
  4. insoluble
Formula of hydrated Sodium Carbonate is
  1. Na(HCO3)2
  2. Na2CO3.(H2O)5
  3. Na2CO3.10H2O
  4. Na3CO4.10H2O
Apples contain
  1. citric acid
  2. malic acid
  3. tartaric acid
  4. acetic acid
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