KCET · Chemistry · General Principles and Processes of Isolation of Metals
Identify the reaction that does not take place in a blast furnace.
- A \(\mathrm{CaCO}_{3} \longrightarrow \mathrm{CaO}+\mathrm{CO}_{2}\)
- B \(\mathrm{CaO}+\mathrm{SiO}_{2} \longrightarrow \mathrm{CaSiO}_{3}\)
- C \(2 \mathrm{Fe}_{2} \mathrm{O}_{3}+3 \mathrm{C} \longrightarrow 4 \mathrm{Fe}+3 \mathrm{CO}_{2}\)
- D \(\mathrm{CO}_{2}+\mathrm{C} \longrightarrow 2 \mathrm{CO}\)
Answer & Solution
Correct Answer
(C) \(2 \mathrm{Fe}_{2} \mathrm{O}_{3}+3 \mathrm{C} \longrightarrow 4 \mathrm{Fe}+3 \mathrm{CO}_{2}\)
Step-by-step Solution
Detailed explanation
The reaction takes place in blast furnace are
\(\begin{array}{rlr}3 \mathrm{Fe}_{2} \mathrm{O}_{3}+\mathrm{CO} & \longrightarrow 2 \mathrm{Fe}_{3} \mathrm{O}_{4}+\mathrm{CO}_{2} \\ \mathrm{CaCO}_{3} & \longrightarrow \mathrm{CaO}+\mathrm{CO}_{2} \\ \mathrm{C}+\mathrm{CO}_{2} & \longrightarrow 2 \mathrm{CO} \\ \mathrm{CaO}+\mathrm{SiO}_{2} & \longrightarrow \mathrm{CaSiO}_{3} \\ 2 \mathrm{C}+\mathrm{O}_{2} & \longrightarrow 2 \mathrm{CO} \\ \text { thence, } & \text { theaction } \\ 2 \mathrm{Fe}_{2} \mathrm{O}_{3}+3 \mathrm{C} & \longrightarrow 3 \mathrm{CO}_{2} \text { is not take place }\end{array}\) in blast furnace.
\(\begin{array}{rlr}3 \mathrm{Fe}_{2} \mathrm{O}_{3}+\mathrm{CO} & \longrightarrow 2 \mathrm{Fe}_{3} \mathrm{O}_{4}+\mathrm{CO}_{2} \\ \mathrm{CaCO}_{3} & \longrightarrow \mathrm{CaO}+\mathrm{CO}_{2} \\ \mathrm{C}+\mathrm{CO}_{2} & \longrightarrow 2 \mathrm{CO} \\ \mathrm{CaO}+\mathrm{SiO}_{2} & \longrightarrow \mathrm{CaSiO}_{3} \\ 2 \mathrm{C}+\mathrm{O}_{2} & \longrightarrow 2 \mathrm{CO} \\ \text { thence, } & \text { theaction } \\ 2 \mathrm{Fe}_{2} \mathrm{O}_{3}+3 \mathrm{C} & \longrightarrow 3 \mathrm{CO}_{2} \text { is not take place }\end{array}\) in blast furnace.
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Chemistry
- During the fusion of organic compound with sodium metal, nitrogen present in the organic
compound is converted intoKCET 2018 Hard - The correct set of quantum number for the unpaired electrons of chlorine atom isKCET 2017 Medium
- By passing electric current, \( \mathrm{NaClO}_{3} \) is converted into \( \mathrm{NaClO}_{4} \) according to the following
equation
\( \mathrm{NaClO}_{3}+\mathrm{H}_{2} \mathrm{O} \rightarrow \mathrm{NaClO}_{4}+\mathrm{H}_{2} \)
How many moles of \( \mathrm{NaClO}_{4} \) will be formed when three Faradays of charge is passed
through \( \mathrm{NaClO}_{3} \) ?KCET 2017 Medium - The relative lowering of vapour pressure produced by dissolving \(18\) g of urea (Molar mass \(= 60\text{ g mol}^{-1}\)) in \(100\) g of water isKCET 2026 Easy
- \(\mathrm{CH}_{3} \mathrm{COOH} \stackrel{\mathrm{LiAlH}_{4}}{\longrightarrow} \mathrm{X} \underset{300^{\circ} \mathrm{C}}{\stackrel{\mathrm{Cu}}{\longrightarrow}} \mathrm{Y} \underset{\mathrm{NaOH}}{\stackrel{\text { Dilute }}{\longrightarrow}} \mathrm{Z}\)
In the above reaction \(Z\) isKCET 2009 Easy - Benzaldehyde and acetone can be best distinguished usingKCET 2010 Medium
More PYQs from KCET
- Direction of current induced in a wire moving in a magnetic field is found usingKCET 2012 Easy
- A body starts from rest and moves with constant acceleration for \( t \) s. It travels a distance \( x_{1} \) in
first half of time and \( x_{2} \) in next half of time, thenKCET 2014 Medium - Let \(P \equiv(-1,0), Q \equiv(0,0)\) and \(R=(3,3)\) be three points. The equation of the bisector of the angle PQR isKCET 2010 Hard
- The smallest positive divisor greater than 1 of a composite number \(a\) isKCET 2013 Medium
- Three identical rods \(A, B\) and \(C\) are placed end to end. A temperature difference is maintained between the free ends of \(A\) and \(C\). The thermal conductivity of \(B\) is thrice that of \(C\) and half of that of \(A\). The effective thermal conductivity of the system will be \(\left(K_{A}\right.\) is the thermal conductivity of \(\left.\operatorname{rod} A\right)\)KCET 2011 Hard
- Geometrical isomerism is shown byKCET 2007 Hard