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Which of the following compounds are covalent:
(1) H2
(2) CaO
(3) KCL
(4) Na2S
Ans: H2
Formation of proteins-peptide bond: Proteins are made by joining the carboxyl group of one amino acid to the α-amino group of other amino acid. The bond build among two amino a
How to prepare preparative TLC plates and how to separate compound by preparative TLC
Why a covalent bond is directional? Covalent bond is formed as a result of pairing of two electrons in atomic orbitals of two atoms. Bond then must lie along the direction of
names
A sub-shell l= 2 can take how many electrons: (1) 3 (2) 10 (3) 5 (4) 6 Ans: 10
A water solution contains 64% Na 2 S 2 O 2 together with 1.0% soluble impurity. Upon cooling to 5°C, Na 2 S 2 O 2 ·5H 2 O. crystallizes out. The solubility of this hydrate is 1.35
some examples of RELATIVE MOLECULAR MASS OF SOLUTES BY RELATIVE LOWERING OF VAPOR PRESSURE
Draw temperature composition phase diagram for binary System? Use the following information to draw a temperature-composition phase diagram for the binary system of H 2 O (A) a
Although CO is well known, SiO does not exist under ordinary conditions. Why is that?
Explain trend in variation of the atomic size properties from Boron and Thallium
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