What is the safety curtain in cinema or theatre made off ?1 2473
Distinguish between flannel and flannelette ?2 6689
What is chemistry ?2 2934
Explain the Solution ?1 2604
What is Filtration ?16 26571
What is Evaporation ?7 7555
What is Distillation ?4 3179
What is Sublimation ?3 3294
Explain the following ? Matter, Element, Atom, Compound, Molecule, Mixture, Physical change, Chemical change1 3456
Difference between Physical and Chemical change ?3 6075
What is Molecular Formula ?1 2998
What is Valency ?1 3885
What is the Chemical Combination ?1 3924
What is Daltons Atomic Theory ?2 3062
Explain the Modern Atomic Theory ?3 4404
How is brass solution prepared?
Explain substituted hydrocarbon?
Why do you require laboratory temperature for viscosity determination?
What happens when the excess of stannous chloride is not removed
Why is the role of glycerol & naoh?
Why is acetic acid added?
What are the advantages of potentiometric titration?
What is mole?
Do all explosions produce carbon dioxide or carbon monoxide?
When a glass rod is heated gradually and suddenly dipped in cold water, it cracks. What is the reason?? When a cool glass rod is suddenly heated, it cracks. Why?
How is hardness of water caused?
Cholesterol is a compound suspected of causing hardening of the arteries. The formula of cholesterol is C27H46O. a. A sample of cholesterol is isolated from the arterial lining of a 60-year-old American male. What is the formula of this compound? b. Cholesterol is extracted from a chicken’s egg. What is the formula of this compound?
Differentiate between organic and inorganic chemistry?
What is the function of diethyl amine?
why is their exotherm while addition of reducing agents in reduction reaction?