Multiple choice

Which of the following statements is/are false? P. Linotype alloy is composed of 86% Pb, 11% Sb and 3% Sn. Q. The composition of wood’s metal is 68% Ni, 27% Cu and 5% Fe and used in soldering. R. Cunife 1 is composed of 60% Cu, 20% Ni and 20% Fe.

  1. Only P

  2. Only Q

  3. Only R

  4. Only P and Q

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

Wood’s metal is composed of 50% Pb, 25% Sn, 12.5% Cd and 12.5% Bi. This alloy has melting point of 80oC and used in soldering. Monel metal is composed of 68% Ni, 27% Cu and 5% Fe and used in the making of boilers of ships. Hence, statement Q is  false.

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