Class XI

 When neutral, indicators show
  1. Red color
  2. Blue color
  3. Yellow/green color
  4. Pink color
In electrolysis of brine, ions moving to anode include
  1. sodium + hydrogen ions
  2. hydroxide + Chloride ions
  3. sodium + hydroxide ions
  4. chloride ions + hydrogen gas
 Elements with 4-7 valence electrons are referred to as
  1. metals
  2. non-metals
  3. inert gases
  4. transition metals
Non-metal oxides showing no reaction with acids or alkalis are called as
  1. Amphoteric acids
  2. Neutral oxides
  3. Acidic oxides
  4. Basic oxides
Examples of non-conductors include
  1. Sulphur
  2. Phosphorus
  3. Wood
  4. All of these
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