हैलोएल्केन का Important रासायनिक गुण |Haloalkanes & Haloarenes| 12th |Chapter 10 |Lec 06 |Vikram sir

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Class 12 Chemistry | Chapter 10 | Haloalkanes and Haloarenes | Important Questions | CBSE Boards Revision | Part 2

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The average of twelve numbers is 45.5. The average of the first four numbers is 41.5 and that of the next five numbers is 48. The 10th number is 4 more than the 11th number and 9 more than the 12th number. What is the average of the 10th and 12th numbers? बारह संख्याओं का औसत 45.5 है | पहली चार संख्याओं का औसत 41.5 है तथा अगली पाँच संख्याओं का औसत 48 है | 10वीं संख्या, 11वीं संख्या से 4 अधिक तथा 12वीं संख्या से 9 अधिक है | 10वीं तथा 12वीं संख्याओं का औसत कितना है ?

Class 10 Science | Chapter 12 Electricity | Important Questions and Quick Revision

हैलोजनीकरण की क्रियाविधि |हैलोएल्केन के भौतिक गुण |हैलोएल्केन के रासायनिक गुण |धातुओं से क्रिया |हाइड्रोक्सी समूह द्वारा हैलोजन का प्रतिस्थापन

The average of 24 numbers is 65. The average of first 11 numbers is 67 and the average of last 10 numbers is 70. If the 12th number is 13 less than the 13th number and the 14th number is one more than the 13th number, then the average of 12th and 14th number is: 24 संख्याओं का औसत 65 है | पहली 11 संख्याओं का औसत 67 है तथा अंतिम 10 संख्याओं का औसत 70 है| यदि 12वीं संख्या 13वीं संख्या से 13 कम है तथा 14वीं संख्या 13वीं संख्या से एक अधिक है, तो 12वीं और 14वीं संख्या का औसत ज्ञात करें |

As the country embarks on planning (71) the 12th Plan (2012-17) period, a key question mark (72) hangs over the process is on the energy requirements. Growth is energy hungry, and the aspirations of growing at 9-10% will (73) huge demands on the energy resources of the country. In this energy Jigsaw, renewable energy will (74) like never before in the 12th Plan and the (75). By the rule of the thumb, India will (76) about 100 gigawatts (GW)-100,000 megawatts-of capacity addition in the next five years. Encouraging trends on energy efficiency and sustained (77) by some parts of the government the Bureau of Energy Efficiency in particular needs to be complimented for this-have led to substantially lesser energy intensity of economic growth. However, even the tendered demand numbers are (78) to be below 80GW.As against this need the coal supply from domestic sources is unlikely to support more than 25GW equivalent capacity Imported coal can add some more, but at a much (79) cost. Gas based electricity generation is unlikely to contribute anything substantial in view of the unprecedented gas supply challenges. Nuclear will be (80) in the foreseeable future. Between imported coal, gas, large hydro and nuclear, no more than 15-20GW equivalent can be (81) to be added in the five-year time block. (82) (83) this, capacity addition in the renewable energy based power generation has touched about 3GW a year. In the coming five years, the overall capacity addition in the electricity grid (84) renewable energy is likely to range between 20GW and 25GW Additionally, over and above the grid based capacity, off-grid electricity applications are reaching remote places and (85) lives where grid-based electricity supply has miserably failed.

As the country embarks on planning (71) the 12th Plan (2012-17) period, a key question mark (72) hangs over the process is on the energy requirements. Growth is energy hungry, and the aspirations of growing at 9-10% will (73) huge demands on the energy resources of the country. In this energy Jigsaw, renewable energy will (74) like never before in the 12th Plan and the (75). By the rule of the thumb, India will (76) about 100 gigawatts (GW)-100,000 megawatts-of capacity addition in the next five years. Encouraging trends on energy efficiency and sustained (77) by some parts of the government the Bureau of Energy Efficiency in particular needs to be complimented for this-have led to substantially lesser energy intensity of economic growth. However, even the tendered demand numbers are (78) to be below 80GW.As against this need the coal supply from domestic sources is unlikely to support more than 25GW equivalent capacity Imported coal can add some more, but at a much (79) cost. Gas based electricity generation is unlikely to contribute anything substantial in view of the unprecedented gas supply challenges. Nuclear will be (80) in the foreseeable future. Between imported coal, gas, large hydro and nuclear, no more than 15-20GW equivalent can be (81) to be added in the five-year time block. (82) (83) this, capacity addition in the renewable energy based power generation has touched about 3GW a year. In the coming five years, the overall capacity addition in the electricity grid (84) renewable energy is likely to range between 20GW and 25GW Additionally, over and above the grid based capacity, off-grid electricity applications are reaching remote places and (85) lives where grid-based electricity supply has miserably failed.