What are amphotrric oxides? Give two examples of amphoteric oxides?
Difference between concave and Convex mirror with examples.
What is the law of refraction?
Name two solid metals and two solid non-metals along with their symbols.
Name two metals which will displace hydrogen from dilute acids and two metals which will not.
What is the role of iris in a human eye?
How much work is done in moving a charge of 2C across two points having a potential difference 12V?
Eplain Electromagnetic Separation.
What is Chemical Nuetralization?
How can you judge and decide the three given mirror, concave,convex and plane mirror?
Differentiate between blood and Lymph.
What is the advantage of a four chambered heart in humans?
How can you determine the focal length of concave mirror?
What is refraction of light?Draw with a neat diagram.
Mention any one reform done by the national assembly after the revolt of 1830.
What was the dream of majjini and how was it not fulfilled?
In which year Germany was united and under which king?
Name the battle in which Napolean lost in 1830.
Name the countries which defeated naplolean in the battle of waterloo in 1815.
How many electrons are required to get 1 coloumb of negetive charge?
Name the person who believed in the blood and iron policy.
Explain inhalation and exhalation?
Name the currency and the unic of measurement of France during the French revolution.