Unsolved Worksheet 1
Unsolved Worksheet 1 1. Write the number of Covalent bonds in the molecule of ethane. 2. Name the life process of an organism that helps in the growth of its population. 3. What will be the amount of energy available to the organisms of the second trophic level of a food chain, if the energy available at the first trophic level is 10,000 joules ? 4. The absolute refractive indices of glass and water are 4/3 and 3/2 respectively. If the speed of light in glass in 2×10 8 m/s , Calculate the speed of light in (i) vacuum, (ii) Water. 5. List two tests for experimentally distinguishing between an alcohol and a carboxylic acid and describe how these tests pre performed. 6. Draw the electron dot structure for ethyne. A mixture of ethyne and oxygen is burnt for welding. In your opinion, why cannot we use a mixture of ethyne and air for this purpose? 7. List six specific characteristics of sexual reproduction. 8. What are chromosomes? Explain how in sexually reproducing organisms the number