TEST - 42 ( Principles of Metallurgy )
EFFORTS NEVER FAIL
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NAME : *
1. The substance added to remove the impurity is *
1 point
2. The most abundent metal in he earth's crust is *
1 point
3.                group elements are called chalcogens. *
1 point
4. Low boiling metals are purified by       method. *
1 point
5. The part of Furnace where we keep Fuel for burning is *
1 point
6. During corrosion   process takes place. *
1 point
7.                 is the place inside the furnace where the ore is kept for heating purpose. *
1 point
8.                       is an alloy of copper and tin. *
1 point
9.  The impurities like clay in a         ore is called *
1 point
10.                  process involves the reaction of metal oxides with aluminium. *
1 point
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