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WHAT ARE THE ELEMENTS OF DETERMINED QUALITATIVE ANALYSIS
name the smallest element that has all properties of an element
what is the chemistry behind haloform reactions?
The ratio between the neutrons in C and Si with respect to atomic masses 12 and 28 is: (1) 2 : 3 (2) 3 : 2 (3) 3 : 7 (4) 7 : 3 Ans: 3 : 7
Amines are soluble in organic solvents whereas ammonium salts are not. Is it true? Ans) yes because amine is contain R-NH2 group where R is carbon groups so they are in polar nat
(a) What is hardness of water? What do you understand by temporary and permanent hardness? OR Explain tempora
Q. Chemical Properties of f-block element? The lanthanides are silvery-white, highly electropositive and reactive metals. They all react slowly with cold water and quickly on h
energy order of octahedral, tetrahdral, squareplaner.
In a multi-electron atom, which of the following orbitals described by the three quantum members will have the same energy in the absence of magnetic and electric fields: (1)n=
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