Class VIII

Materials around us can be classified into
  1. Elements and compounds
  2. Metals and non-metals
  3. Acids and bases
  4. None of these.
Materials having the properties of both metals and non metals are called _____.
  1. Metalloids
  2. Noble metals
  3. Alloys
  4. Mixtures
Metals are generally__________
  1. soft and ductile
  2. hard and brittle
  3. non-reactive and malleab
  4. hard, ductile and malleable
Non metals are generally _____________.
  1. hard and ductile
  2. soft and brittle
  3. hard and brittle
  4. soft and ductile
Metal oxides are of nature
  1. Acidic
  2. Basic
  3. Neutral
  4. All of these.
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