Question:
When a mixture of air and steam is passed over red hot coke, the outgoing gas is
When a mixture of air and steam is passed over red hot coke, the outgoing gas is
Updated On: Jul 7, 2022
- Producer gas
- Water gas
- Coal gas
- None of these gases
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The Correct Option is D
Solution and Explanation
Producer gas $ {(CO + N2)}$ is prepared by incomplete combustion of coal, coke or charcoal.Water gas $ {(CO + H2)}$ is prepared by blowing steam through the layers of incandescent coal and coal gas (a mixture of $ {H2, CH4, CO, C2H2, C2H4, CO2, N2}$ & $ {O_2}$) is obtained by destructive distillation of coal at about 1000?C.
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Concepts Used:
P-Block Elements
- P block elements are those in which the last electron enters any of the three p-orbitals of their respective shells. Since a p-subshell has three degenerate p-orbitals each of which can accommodate two electrons, therefore in all there are six groups of p-block elements.
- P block elements are shiny and usually a good conductor of electricity and heat as they have a tendency to lose an electron. You will find some amazing properties of elements in a P-block element like gallium. It’s a metal that can melt in the palm of your hand. Silicon is also one of the most important metalloids of the p-block group as it is an important component of glass.
P block elements consist of:
- Group 13 Elements: Boron family
- Group 14 Elements: Carbon family
- Group 15 Elements: Nitrogen family
- Group 16 Elements: Oxygen family
- Group 17 Elements: Fluorine family
- Group 18 Elements: Neon family