the main element in steel the main element in steel the main element in steel sp

Question

the main element in steel the main element in steel the main element in steel spilateseams and lakes now come mainly from a) car exhaust c) fertilizers b) coal-fired power plants d) pesticides 6. One definition of reduction is: @ gain or electrONS of elec 7. In this reaction C6H6 + Na C6H8+ Na", the oxidizing agent is 8. In this reaction C3H8O + CrOg C3H602 +CrO2, what material is being oxidized? 9. Which of these metals may be found in its pure form (not as an ore) in the ground? a) aluminum b) gold c) iron d) lead 10. The main element in steel is: a) carborn b) iron c) lead d) tin

Explanation / Answer

6.Reduction is a chemistry is defined as the gaining of electrons by one of the atoms involved in the reaction or reaction with Hydrogen .

So option (c) is correct.

7.In chemistry, an oxidizing agent  is a substance that has the ability to oxidize other substances present in the reaction, in other words to cause them to lose electrons and itself gets reduced.

In this reaction oxidizing agent C6H6, it causes Na to lose electrons.

8. In this reaction Cr2O3 loses an oxygen and C3H8O gains oxygen, so C3H8O is oxidosed.

9.Only gold is found in pure form inside the earth, others need to be extracted from the earth.

So option b) is correct.

10.Steel is an alloy of iron with about 1 percent carbon. It may also contain other elements, such as manganese and some other metals.

So option b) is correct.

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