Thermite is a mixture of $X$ parts of ferric oxide and $Y$ parts of aluminium powder. $X, Y$ respectively are

Thermite is a mixture of $X$ parts of ferric oxide and $Y$ parts of aluminium powder. $X, Y$ respectively are
  1. $3,1$
  2. $3,2$
  3. $1,1$
  4. $2,3$

Solution

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Asked in: AP EAMCET 2002

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