Alloys containing iron are given. Find out a, b, c, and d.

Steels Components Uses
i. Alnico ..........a......... ..........b..........
ii. ......c....... Fe , Cr , Ni , C For making utensils
iii. Nichrome Fe, Cr , Ni , C .........d..........

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Solution

a. Fe , Ni , Al ,Co
b. For the manufacture of permanent magnets
c. Stainless steel
d. For making heating coils

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Magnetic moment 2.84 B.M. is given by : (At. Nos., Ni = 28, Ti = 22, Cr = 24, Co = 27)

A g^{+}, N i^{+ 2}

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A g (A t . w t . = 108), N i (A t . w t . = 59) a n d C r (A t . w t . = 52)

\begin{matrix} A g (i n g m) & N i (i n g m) & C r (i n g m) a) & 108 & 59 & 52 b) & 108 & 29.5 & 17.3 c) & 36 & 19.6 & 17.3 d) & 108 & 108 & 108 \end{matrix}

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