Questions

It rises on the Amarkantak plateau in the in the Maikal Range from a spring at a height of 1060m

An Indian boy has won the world’s largest pre-college science competition in the US in the environmental engineering category for his project on biodegradation of pesticides. Prashant Ranganathan, a 12th grader from Jamshedpur, alongwith over 20 high school students from various parts of India, participated in the Intel International Science and Engineering Fair.

Tips :

In order to achieve the commitment, leaders have to request and convince the team to set goals and put them into the process. The cooperative spirit and solidarity for goal achievement are created by the leaders. The team is led into the implementing period as quickly as possible. The argument and ideas from all stakeholders need to be praised. In order to have a success and brilliant commitment, they must express their passionate personal commitment and boost a useful cultivation by highly evaluating individuals’ value and their contributions.

The stability of the ions is determined by the energy of the lone pairs. Carbon has the least effective nuclear charge (Zeff) and so the lone pair on the CH3− ion has the highest energy, making it the least stable ion and so the strongest base. The Zeff increases as we move across the period until we get to fluorine which has the greatest Zeff and so its lone pairs have the lowest energy, making F− the least basic ion.

In order of decreasing basicity they are ranked LiCH3 > LiNH2 > LiOH > LiF. We are dealing with the ions F−, OH−, NH2− and CH3− and so the factor which influences their basicity is the stability of the ion compared to its conjugate acid.