- Born: 15th October 1931 at Rameswaram, Tamil Nadu.
- His birth anniversary is celebrated as the National Innovation Day.
- He was an Indian scientist and politician who played a leading role in the development of India’s missile and nuclear weapons programmes like Integrated Guided Missile Development Programme (IGMDP).
- He planned programmes to produce a number of successful missiles, which helped earned him the nickname “Missile Man”.
- In Indian Space Research Organization (ISRO), he was the project director of the SLV-III, India’s first indigenously designed and produced satellite launch vehicle.
- In 1998, he put forward a countrywide plan called Technology Vision 2020, which he described as a road map for transforming India from a less-developed to a developed society in 20 years.
- The plan called for, among other measures, increasing agricultural productivity, emphasizing technology as a vehicle for economic growth, and widening access to health care and education.
- He was sworn in as India’s 11th President in 2002 and completed the full term in 2007.
- Literary Works: Wings of Fire (autobiography), India 2020 - A Vision for the New Millennium, Ignited Minds - Unleashing the power within India, etc.
- Awards: Among his numerous awards were two of the country’s highest honors, the Padma Vibhushan (1990) and the Bharat Ratna (1997).
- Death: 27th July 2015 at Shillong, Meghalaya.
A leaf was plucked from a plant on a sunny day and kept for 2 minutes in boiling water. It was subsequently immersed in boiling alcohol and treated with iodine solution. What will be the final colour of the leaf after the test?
The final color of the leaf after the described test would likely be a bluish-black color. The process described is a common laboratory experiment known as the iodine test for starch. When a leaf is plucked from a plant, it contains starch. The boiling water breaks down the cell membranes and denatures the enzymes, effectively stopping any metabolic processes. Boiling alcohol acts as a solvent to remove chlorophyll from the leaf. Finally, when the leaf is treated with iodine solution, it reacts with the remaining starch, resulting in the formation of a bluish-black color. This color change indicates the presence of starch in the leaf.

Comments
Post a Comment