1. The sources from whch quinine is extracted is
    1. bamboo
    2. teak
    3. cinchona

  2. Mercury is obtained from
    1. Bauxite
    2. Galena
    3. Cinna bar

  3. The chemical name of 'Caustic Soda' is
    1. Sodium Hydroxide
    2. Aluminium Oxide
    3. Potassium Hydroxide

  4. The chemical name for common sault is
    1. Sodium Chlorate
    2. Sodium Hydroxide
    3. Sodium Chloride

  5. 'Plaster of paris' is chemically known as
    1. Sodium Aluminium
    2. Sodium acetate
    3. Calcium Sulphate

  6. 'Sodium Carbonate' is commonly known as
    1. Epsom
    2. Washing soda
    3. Gypsom

  7. The composition of 'Brass' is
    1. Zinc and Nickel
    2. Aluminium and Cobalt
    3. Copper and Zinc

  8. 'Type metal' is made by composition of
    1. Copper, Tin & Zinc
    2. Nickel, Chromium & Zinc
    3. Lead, Antimony & Tin

  9. 'Rock Salt' mainly consists of
    1. Aluminium
    2. Iron
    3. Sodium

  10. Bile secreted by liver helps in ........
    1. Excretion
    2. Respiration
    3. Purification of blood
    4. Digestion