Multiple choice

Which of the following statements is/are incorrect? A. Copper is used for making wires used in electrical industry and for water and steam pipes. B. German silver contains Cu 50-60% and Ni 40–50%. C. Zinc dust is used as a reducing agent in the manufacture of dye-stuffs, paints, etc. and in several organic and inorganic synthesis reactions.

  1. A only

  2. B only

  3. C only

  4. A and B

  5. B and C
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A. Copper has very good anti-corrosive property and is used for making wires used in electrical industry and for water and steam pipes. B. German silver contains Cu 25-30%, Zn 25-30% and Ni 40–50%. C. Zinc dust is used as a reducing agent in the manufacture of dye-stuffs, paints, etc. and in a several organic and inorganic synthesis reactions.

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