The advantage(s) of using O2 rather than air in the steel industry is(are)
(I) there is a faster conversion, so a given plant can produce more steel in a day
(II) larger quantities can be handle

Question

The advantage(s) of using O2 rather than air in the steel industry is(are)
(I) there is a faster conversion, so a given plant can produce more steel in a day
(II) larger quantities can be handled
(III) it gives a pure product, and the surface is free from nitrides

Prashant Kotian · Accepted Answer

Correct answer: D. Step 1: Joining delicate metal pieces in jewelry requires a solder alloy that has a lower melting point than the metals being joined. Step 2: Cadmium (Cd) lowers the melting temperature and improves the flow characteristics of silver-based solder alloys. Step 3: Consequently, Cadmium (Cd) is the key metallic component used for making solder joints in jewelry, matching option (d).

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