Reaction of alcohol, with a carboxylic acid is known as
1 Substitution Reaction
2 Addition reaction
3 Esterification
4 Hydrogenation
The rate of chemical reaction does not depend upon 1 Concentration 2 Catalyst 3 Temperature 4 Pressure
How can we calculate %difference in Weighing balance?
cause for earth-to-neutral voltage
A mixture of water and alcohol can be separated by 1 Filtration 2 Evaporation 3 Distillation 4 Decantation
Which of the following reactions is used for increasing the number of carbon atoms in a chain? 1 Substitution reaction 2 Wurtz reaction 3 Friedel – Crafts reaction 4 Cannizzaro’s reaction
A super conductor is characterized by 1 Zero permeability 2 Low permeability 3 High permeability 4 Infinite permeability
What are luminous irregular nebulae?
what the defference from anti virus and spyware and adware also? Please descript?
Which are known as non - luminous irregular nebulae?
The isotope of uranium capable of sustaining chain reactions is 1 U-235 2 U-238 3 U-239 4 None of these
Potassium nitrate is used in 1 Salt 2 Glass 3 Fertilizer 4 Medicine
Names of some plants and trees that sleep during the day