Class XI

 Simple molecules or giant macromolecules are examples of
  1. ionic compounds
  2. covalent bonds
  3. metallic bonds
  4. dative bond
An alkali (OH-) is a
  1. water soluble base
  2. water insoluble base
  3. oil soluble base
  4. oil insoluble base
Full shell of valence electrons make
  1. Metals
  2. Non metals
  3. Inert gases unreactive
  4. Isotopes
Consider equation P4O10 + H2O → H3PO4. Moles of water required in reaction would be
  1. 4
  2. 5
  3. 6
  4. 7
 Water has a pH of
  1. 6
  2. 7
  3. 5
  4. 11
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