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what is the chemistry behind the reactions of confirmatory test of sulphide radical of dilute acid group.
Alkaline earth metals: The elements Be, Mg, Ca, Sr, Ba and Ra belong to II A group. 2. II A group elements are also called alkaline earth metals. 3. The valence electron
The frequency of an electromagnetic radiation is 2x 10 6 Hz. . What is its wavelength in metres : (Velocity of light = 3x10 8 ms -1 ) (1)6.0x 10 14
dipole moment of para.nitro aniline is 6.10 D.why
Q)why is the extraction of copper from pyrites more difficult than that from its oxide ore through reduction? Ans) The Standard free energy of formation of Cu2S is greater than
mass of atom
Calculate the force constant of CF4 and SiF4 and compare their relative strengths with each other. The heats of formation of CF 4 and SiF 4 are -1222 kJmol -1 and -1615
synthesis what is it
why mercury been liquid?
Which of the sub-shell is circular: (1) 4s (2) 4f (3) 4p (4) 4d Ans: 4s
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