What is the oxidation number of carbon in CH₄?
Let C = x. H = +1. Equation: x + 4(+1) = 0, x + 4 = 0, x = -4.
Ref: NCERT Class 11 Chemistry > Chapter 7: Redox Reactions > Topic: Electrode Potential and Electrochemical Series and Galvanic Cells
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A mixture of 16 g CH₄ and 32 g O₂ is ignited. What is the mass of CO₂ produced? (Atomic masses: C = 12, H = 1, O = 16)
Reaction: CH₄ + 2O₂ → CO₂ + 2H₂O. Moles: CH₄ = 1 mol, O₂ = 1 mol. O₂ is limiting (1 mol). 0.5 mol CH₄ reacts, producing 0.5 mol CO₂ = 22 g.
Ref: NCERT Class 11 Chemistry > Chapter 1: Some Basic Concepts of Chemistry > Topic: Dalton's Atomic Theory and Atomic and Molecular Masses
What is the mass of water produced when 8 g of CH₄ reacts with 24 g of O₂? (Atomic masses: C = 12, H = 1, O = 16)
Reaction: CH₄ + 2O₂ → CO₂ + 2H₂O. Moles: CH₄ = 0.5 mol, O₂ = 0.75 mol. O₂ limits at 0.375 mol CH₄. 0.375 mol CH₄ produces 0.75 mol H₂O = 13.5 g.
Ref: NCERT Class 11 Chemistry > Chapter 1: Some Basic Concepts of Chemistry > Topic: Dalton's Atomic Theory and Atomic and Molecular Masses
Which gas is predominantly produced during microbial biogas production?
Methane is the major gas produced by methanogenic bacteria during biogas production.
Ref: NCERT Class 12 Biology Chapter 8: Microbes in Human Welfare Microbes in Biogas Production - Methanogens
Which type of microorganism helps in the production of methane in biogas plants?
Methanogenic bacteria like Methanobacterium break down organic matter to produce methane gas.
Ref: NCERT Class 12 Biology Chapter 8: Microbes in Human Welfare Microbes in Biogas Production - Methanogens
Which gas is a major component of biogas?
Methane is the major component of biogas, produced by methanogenic bacteria.
Ref: NCERT Class 12 Biology Chapter 8: Microbes in Human Welfare Microbes in Biogas Production - Methanogens
Which gas is predominantly produced during biogas production?
Methane is the primary gas produced by methanogens in biogas plants.
Ref: NCERT Class 12 Biology Chapter 8: Microbes in Human Welfare Microbes in Biogas Production - Methanogens
Which group of archaebacteria is responsible for methane production from the dung of ruminants?
Methanogens occur in the gut of ruminants such as cows and buffaloes. They are responsible for producing methane, or biogas, from the dung of these animals.
Ref: NCERT Class 11 Biology Chapter 2: Biological Classification Kingdom Monera - Archaebacteria and Eubacteria