For the reaction $Fe_2O_3 +3CO \rightarrow 2Fe + 3CO_2$ the volume of carbon monoxide required to reduce one mole of ferric oxide is
- $22.4\, dm^3$
- $44.8\, dm^3$
- $67.2\, dm^3$
- $11.2 \, dm^3$
The Correct Option is C
Solution and Explanation
The correct option is(C): 67.2dm3.
\(\underset{1\,mol} {Fe _{2}O_{3}}+\underset{3 mol }{3 CO } \longrightarrow 2 Fe +3 CO _{2}\)
Volume of \(1\, mole\) carbon monoxide
\(= 22.4\, L\) (at STP)
\(1\) mole of ferric oxide is reduced by \(= 3\) moles of \(CO\)
\(=3 \times 22.4\, L\) of \(CO\)
\(=67.2 \,dm ^{3}\) of \(CO\)
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Chemistry is a vast subject and for understanding its significance we can take help of following points:
- Chemistry plays an important role in understanding various subjects like physics, geology and biology.
- Chemistry is a core branch of science that explains us about the various compositional properties and interaction of matter. It also helps to understand various chemical reactions.
- Chemistry is important in order to understand the behaviour of fertilizers, alkenes, acids, salts, dyes, polymers, drugs, soaps and alloys in organic and inorganic chemistry.
- Chemistry plays an important role in various fields like healthcare, industrial, research, food, and farm activities.
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Classification of Matter
There are two ways of classifying the matter:
(A) Physical Classification:
Matter can exist in three physical states:
- Solids - have definite volume and definite shape
- Liquids - have definite volume but not definite shape.
- Gases - have neither definite volume nor definite shape.
(B) Chemical Classification:
Based upon the composition, matter can be divided into two main types:
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