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Fast reactions are those reactions that occur instantaneously. A fast reaction depends upon the reaction rates. These reactions are so fast that they occur as soon as the reactants
There are 13 electrons in an element whose nucleus comprise 14 neutrons. Obtain atomic number and atomic weight of this element. If atomic weight of the isotope of above element is
Q. What is compound? A compound is a substance which consists of two or more elements chemically combined. The elements in a compound aren't simply mingled together as they a
During a flame test why is calcium''s flame not persistent, while that of strontium is? Ans) Because it does not have many ions as compared to the Strontium. It is the ions whic
Which type of compounds show high melting and boiling points: (1) Electrovalent compounds (2) Covalent compounds (3) Coordinate compounds (4) All the three types of co
Q. Describe Lime-soda method for softening of hard water. Discuss the advantages of the process and the chemistry involved in it.
Q. Show the characteristic baked flavour bread? Bread has its own characteristic baked flavour. This flavour diminishes with shelf life. A freshly baked bread would have intens
explain the chemical change that take place in the conversion primary alcohols into secondary alcohols
Ethanol or Ethyl alcohol This is obtained by the fermentation of Molasses in the presence of enzymes as catalyst. C12H22O11+H2O→C6H12O6 + C6H12O6 (sugar)
20ml of water sample requires 15ml of 0.1mg/l sodium carbonate using phenolphthalein indicator. state the type of acidity and calculate the acidity
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