6. The efforts to detect the existence of Higgs boson particle have become frequent news in the recent past. What is/are the importance / importances of discovering this particle? 1. It will enable us to understand as to why elementary particles have mass. 2. It will enable us in the near future to develop the technology of transferring matter from one point to another without traversing the physical space between them. 3. It will enable us to create better fuels for nuclear fission.
Select the correct answer using the codes given below.
1 only
2 and 3 only
1 and 3 only
1, 2 and 3
7. Photochemical smog is a resultant of the reaction among
NO2, O3 and peroxyacetyl nitrate in the presence of sunlight
CO, O2 and peroxyacetyl nitrate in the presence of sunlight
CO, CO2 and NO2 at low temperature
high concentration of NO2, O3 and CO in the evening
8. With reference to the usefulness of the by-products of sugar industry, which of the following statements is/are correct? 1. Bagasse can be used as biomass fuel for the generation of energy. 2. Molasses can be used as one of the feedstocks for the production of synthetic chemical fertilizers. 3. Molasses can be used for the production of ethanol.
9. Acid rain is caused by the pollution of environment by
carbon dioxide and nitrogen
carbon monoxide and carbon dioxide
ozone and carbon dioxide
nitrous oxide and sulphur dioxide
10. Consider the following organisms: 1. Agaricus 2. Nostoc 3. Spirogyra
Which of the above is/are used as biofertilizer/biofertilizers?
1 and 2
2 only
2 and 3
3 only