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Q. What are Changes in Matter? Matter is able to undergo two fundamental kinds of changes. Changes that don't alter the composition of matter are called physical changes. Sta
Q. Sometimes (surprisingly!) it is easier to do mass transfer measurements than heat transfer ones. As part of a study you have been asked to determine the heat transfer coefficien
According to Collision theory a chemical reaction takes place due to collision between the particles of these reactants. The number of reacting species (atoms, ions or molecules) w
The electronic configuration (outermost) of Mn +2 ion (atomic number of Mn= 25 ) in its ground state is: (1) 3d 5 , 4s o (2) 3d 4 , 4s 1 (3
Anomalous behaviour of Beryllium
In addition, of hydrogen halides to the unsymmetrical alkens, Hydrogen is added to the carbon atom having of more number of hydrogen atoms and halide is added to the carbon atoms h
What is happen whenever H2SO4+HNO3 adding to the phenol.give the reaction Ans) Phenol + HNO3(in prescence of sulphuric acid) --> 2-nitrophenol + 4-nitrophenol.
SOME EXAMPLES FOR ANTI-FERTILITY DRUGS
What are ferrites? Ferrites are ceramic compounds containing trivalent metal having three valence electrons, iron and oxide of divalent element i.e. metals having two free ele
How to find the atomic structure of H
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