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Give reasons for the following : 'Carb...

Give reasons for the following :
'Carbon-oxygen bond lengths in formic acid aer `1.23 Å` and `1.36 Å` and both carbon-oxygen bonds in sodium formate have the same value, i.e., `1.27 Å`.

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The correct Answer is:
Formate in shown equivalent resonating structures while formic acid coes not.
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The binary compounds of oxygen with other elements are called oxides. They are classified depending either upon their acid-base characteristics or on the basis of oxygen content. (a) Normal oxides : These oxides which contain oxygen atom as permitted by the normal oxidation number, i.e., -2 normal oxide may be acidic, basic, amphoteric or neutral. (b) Polyoxides : The oxides which contain oxygen atoms different than those permitted by the normal oxidation number of -2 . (i) Peroxides : Two oxygen atoms are linked to each other and oxyegen has -1 oxidation number. They contain (O -O)^(2-) unit. (ii) Superoxodes : These oxides contain (O-O)^(-1) unit, i.e., each O-atom has oxidation number -1//2 . (c) Suboxides : These contain low content of oxygen than expected. (d) Mixed oxides : These oxides are made of two simpler oxides. Which of the following pairs contains amphoteric oxides ?

The binary compounds of oxygen with other elements are called oxides. They are classified depending either upon their acid-base characteristics or on the basis of oxygen content. (a) Normal oxides : These oxides which contain oxygen atom as permitted by the normal oxidation number, i.e., -2 normal oxide may be acidic, basic, amphoteric or neutral. (b) Polyoxides : The oxides which contain oxygen atoms different than those permitted by the normal oxidation number of -2 . (i) Peroxides : Two oxygen atoms are linked to each other and oxyegen has -1 oxidation number. They contain (O -O)^(2-) unit. (ii) Superoxodes : These oxides contain (O-O)^(-1) unit, i.e., each O-atom has oxidation number -1//2 . (c) Suboxides : These contain low content of oxygen than expected. (d) Mixed oxides : These oxides are made of two simpler oxides. Which of the following pairs contains mixed oxides ?

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ALLEN-ALKENE, ALKANE & ALKYNE -EXERCISE-4[A]
  1. CH-=CHoverset(NaNH(2))to[A]overset(CH(3)Br)to[B]

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  2. A comopound has two isomers (A) and (B) of formula C(5)H(10)O. Isomer ...

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  3. Give reasons for the following : 'Carbon-oxygen bond lengths in form...

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  4. Assertion:- pKa(1) of fumaric acid is greater than maleic acid. Reas...

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  5. Which is stronger conjugate base in each pair ? (A) overset(-)OH or ...

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  6. Which acid of each pair shown here would you expect to be stronger? ...

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  7. What are A and B in the following ?

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  8. In the following reaction, trace the position of isotopic O^(18) CH(...

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  9. Write the reagents to carry out following conversions: CH(3)overset(...

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  11. What are X and Y ?

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  12. Write down the structure of A? What is the use of A ?

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  13. Arrange the following in decreasing basic order with proper reasoning.

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  14. Sulphanilic acid is a/an:

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  15. What is the order of basicity of the following compounds ? (i) CH(3)...

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  16. What is the order of basicity of the following compounds ? (i) CH(3)...

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  17. Unlike other aromatic amines, why is the following amine stongly basic...

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  18. In this compound which site acts as an acid and which as a base ?

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  19. Alkyl cyanides (CH(3)CN) when treated with hydrogen in presence of P...

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  20. Write the compound (A) and (B) formed in this

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