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Ortho, meta and para
1. Ortho (or 1, 2-) : if the two substituents are on the adjacent carbon atoms, the compound is said to be ortho (or 1, 2-).
2. Meta (or 1, 3-) : if the two substituents are on alternate carbon atoms, the compound is said to be meta or (1, 3-).
3. Para (or 1, 4-) : if the two substituents are on diagonally situated carbon atoms, the ompound is said to be para or (1, 4-).
Ortho, meta and para are generally displayed as o-, m- and p- correspondingly.
Classification of proteins - Fibrous proteins These are composed of polypeptide chains which run parallel to the axis and are held together by a strong hydrogen and disulphide
Compounds and IUPAC names
lanthanoids with +4 o.s act as strong oxidising agents even though it is in stable configuration f zero
Application of catalyst in industries
The valency of sulphur in sulphuric acid is: (1) 2 (2) 4 (3) 6 (4) 8 Ans: 6
CATALYSTS A catalyst is a species that speeds up a chemical reaction but is not itself consumed. Catalysts do not change the thermodynamics of the position of equilibrium or a
The atomic number of an element is 17. The number of orbitals containing electron pairs in its valence shell is: (1) Eight (2) Six (3) Three
Physical properties of nitroalkanes
Bohr's radius can have: (1) Discrete values (2) +ve values (3) - ve values (4) Fractional values Ans: +ve values
what/s this test
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