New Batches For +2 State Board Commences In The Month Of April 2009. Admission For +1 +2 State Board Is On For Academic Year 2009-2010.

Welcome to Keshav Academy

G.Ayyappan

In a competitive environment in India education is the most important element for growth and prosperity of a nation. The level of student standards determines the knowledge acquired in the subjects. Personal attention on a single subject to The master on that subject will need Hard Work and proper guidance .

Moto: Dedicated Coaching, Strict Displine, Individual Attention

Chemical Demonistration

OSCILLATING YELLOW AND BLUE SOLUTION DEMO

For this demonstration you simply place a flask containing a yellow solution on a magnetic mixer and watch the solution turn from yellow to blue and back to yellow. The reaction will continue to oscillate for 10–15 minutes.

Oxidation of Primary, Secondary, Tertiary Alcohols

Description:

Samples of alcohols are added to acidic dichromate solutions, which are orange. The rate at which the orange color converts to blue chromium (III) is compared for the three types of alcohols.

Combustion Product of Sulfur

Description:

Sulfur is burned and placed in a flask containing oxygen. Sulfur dioxide is produced and dissolves in water containing an indicator, which changes color as the water becomes acidic.

Questions & Tips..

Question Of The Weak
which of the following process invloves obsorption of energy?
(a) Cl + e¯ -> Cl¯ (b) O¯ + e¯ -> O₂¯
(a) O + e¯ -> O¯ (a) S + e¯ -> S¯


Flammable Ice Experiment