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Elements of group 14 exhibit oxidation s...

Elements of group 14 exhibit oxidation state of

A

`+4` only

B

`+2 and +4` only

C

`+1 and +3 only`

D

`+2` only

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The correct Answer is:
B
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Elements of group 14 (a) exhibit oxidation state of +4 only (b) exhibit oxidation state of +2 and +4 (c) form M^(2–)" and "M^(4+) ions (d) form M^(2+)" and "M^(4+) ions

The heavier members of 13 and 14 groups besides the group oxidation state also show another oxidation state. Down the group (darr) , the stability of higher oxidation state increases. This concept which is commonly called inert pair effect has been used to explain many physical and chemical properties of the element of these groups. Heavier members of group 13 exhibit oxidation state.

Compare the general trend in the following properties of the elements of group 13 and 14 : Oxidation states,

The element with atomic number 17, can exhibit oxidation state of

The element with atomic number 9 will exhibit oxidation state of

NCERT FINGERTIPS-PRACTICE PAPER 2-Practice Paper 2
  1. The bond order of a molecule is given by

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  2. Permanent hardness is due to presence of soluble salts of Mg and Ca in...

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  3. Mark out the correct increasing order of radius.

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  4. DeltaH("neutralisation") is always

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  5. The pH of blood is

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  6. Which of the following is according to Boyle's law?

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  7. pH of a 1.0xx10^(-8) M solution of HCl is

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  8. The substance used as a adsorbentt in the column

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  9. Elements of group 14 exhibit oxidation state of

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  10. With rise in temperature, viscosity of a liquid

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  11. Air contains 21% of oxygen by volume. The number of moles of O(2) pres...

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  12. The ratio of average speed of an oxygen molcule to the RMS speed of a ...

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  13. The kinetic enerrgy of 4 mole sof nitrogen gas at 127^(@)C is (R=2" ca...

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  14. Out off N(2)O,SO(2),I(3)^(+),I(3)^(-),H(2)O,NO(2)^(-),N(3)^(-), the li...

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  15. In which of the following ionisation processes, the bond order has inc...

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  16. Which of the following structure is correctly drawn according to funda...

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  17. Back bonding in BF(3) does not afect

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  18. Ammonium carbamate when heated tto 200^(@)C gives a mixture of NH(3) a...

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  19. For the reaction, A((g))+2B((g))hArr 3C((g))+3((g)),K(p)=0.05" atm at ...

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  20. Consider the following reaction, (i) CO(3)^(2-)+H(2)OhArrHCO(3)^(-)+...

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