Sound WavesHard
Question
The carbon-based reduction method is NOT used for the extraction of
Options
A.tin from SnO2
B.Iron from Fe2O3
C.aluminium from Al2O3
D.magnesium from MgCO3.CaCO3
Solution
(A) 
SnO2 + 2C → Sn + 2CO ↑
SnO2 + 2CO → Sn + 2CO2 ↑
(B)
Fe2O3 + 3C → 2Fe + 3CO ↑
Fe2O3 + 3CO → 2Fe + 3CO2 ↑
(C)
(D)
In no process carbon is used as reducing agent.
SnO2 + 2C → Sn + 2CO ↑
SnO2 + 2CO → Sn + 2CO2 ↑
(B)
Fe2O3 + 3C → 2Fe + 3CO ↑
Fe2O3 + 3CO → 2Fe + 3CO2 ↑
(C)
(D)
In no process carbon is used as reducing agent.
Create a free account to view solution
View Solution FreeMore Sound Waves Questions
For sky wave propagation of MHz signal, what should be the minimum electron densty in ionosphere?...A detector is released from rest over height h a source of sound of frequency f0 = 103 Hz. The frequency observed by the...A string of length 0.4 m and mass 10-2 is tightly clamped at its ends. The tension in the string is 1.6 N. Identical wav...A bat moving at 10ms-1 towards a wall sends a sound signal of 8000 Hz towards it. On reflection it hears a sound of freq...A point mass is subjected to two simultaneous sinusoidal displacements in x-direction, x1(t) = A sin ωt and x2(t) =...