Multiple choice

Which of the following statements is/are false? A. Copper is used for making anticorrosive wires that are used in electrical industries. B. Constantan consists of 60% copper and 40% tin. C. In the manufacturing of dye-stuffs, paints zinc dust is used as reducing agent.

  1. Only A

  2. Only B

  3. Only C

  4. Only A and B

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

Constantan is a copper-nickel alloy usually consisting of 55% copper and 45% nickel. Hence, statement B is only false.

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