Related InterviewSolutions

• Give the uses of Coal.
• Name the following:Components of biogas
• CH3 – C = CH is …………… . (a) Propene (b) Propyne(c) Ethyne(d) Ethene
• Give the following information of carbon dioxide: Molecular formula, Molecular mass, Melting point, Percentage occurrence in air.
• Biogas contains about methane. (a) 55% to 60% (b) 20% to 25% (c) 90% to 95% (d) 40% to 45%
• Write scientific reasons:Graphite is not used in ornaments.
• Write two physical properties each:Fullerene
• Melting point of methane is (a) -182.5 °C (b) -161.5 °C (c) 182.5 °C (d) 161.5 °C
• Carbon dioxide gas is not used in (a) photosynthesis (b) aerated drinks(c) glass cutting (d) fire extinguishers
• Match the columns:Column ‘A’Column ‘B’(1) Diamond (a) Hexagonal layered structure (2) Fullerenes (b) Tetragonal three dimensional structure (3) Graphite(c) Geodesic dome