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The ratio of magnetic of Fe (III) and Co...

The ratio of magnetic of `Fe` (III) and `Co` (II) is :

A

`sqrt(5) : sqrt(7)`

B

`sqrt(35) : sqrt(15)`

C

`7 : 3`

D

`sqrt(24) : sqrt(15)`

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Large quantities of hydrogen are required these days in industry for various purposes. Water is found to be the industry raw material from which hydrogen can be obtained . One of the important methods for the commerical production of hyrogen in Lane's process in which steam is passes over hot iron. Iron decomposes steam with formation of magnetic oxide (Fe_(3)O_(4)) and hydrogen. (i) {:(3Fe,+,4H_(2)O,rarr,Fe_(3)O_(4),+, 4H_(2)),(,,"steam",,"magnetic ",,),(,,,,"oxide",,):} Iron is regenerated by reducing magnetic oxide with water gas (it is mixture of CO and H_(2) in 1:1 mole ratio). {:((ii),Fe_(3)O_(4),+,4CO,rarr,3Fe ,+,4CO_(2)uarr),((iii),Fe_(3)O_(4),+,4H_(2) ,rarr,3Fe,+,3H_(2)O),(,,,,,,,("Steam recovered")):} [equal amount sof magnetic oxide react in steps (ii) and (iii)] Steam so produced is again used in the previous step in which magnitic oxide is produced : [At . wt. implies Fe=56] How many grams of iron are needed in order to produce 11.35 litre fo H_(2) gas at STP?

Large quantities of hydrogen are required these days in industry for various purposes. Water is found to be the industry raw material from which hydrogen can be obtained . One of the important methods for the commerical production of hyrogen in Lane's process in which steam is passes over hot iron. Iron decomposes steam with formation of magnetic oxide (Fe_(3)O_(4)) and hydrogen. (i) {:(3Fe,+,4H_(2)O,rarr,Fe_(3)O_(4),+, 4H_(2)),(,,"steam",,"magnetic ",,),(,,,,"oxide",,):} Iron is regenerated by reducing magnetic oxide with water gas (it is mixture of CO and H_(2) in 1:1 mole ratio). {:((ii),Fe_(3)O_(4),+,4CO,rarr,3Fe ,+,4CO_(2)uarr),((iii),Fe_(3)O_(4),+,4H_(2) ,rarr,3Fe,+,3H_(2)O),(,,,,,,,("Steam recovered")):} [equal amount sof magnetic oxide react in steps (ii) and (iii)] Steam so produced is again used in the previous step in which magnitic oxide is produced : [At . wt. implies Fe=56] How many grams of steam is consumed in order to produce 11.35 litres H_(2) gas at STP?

NARENDRA AWASTHI-ATOMIC STUCTURE-Exercise
  1. The orbital diagram in which both Pauli's exclusion principle and Hund...

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  2. Which of the following elements is represents by the electronic config...

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  3. The ratio of magnetic of Fe (III) and Co (II) is :

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  4. If the electronic structure of oxygen atom is written as 1s^(2) , 2s^(...

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  5. A compound of vanadium has a magneitc moment (mu) of 1.73 BM. If the v...

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  6. d^(6) configuration will result in total spin of :

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  7. The probability of finding electron in d(xy) orbital is :

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  8. Select correct statement :

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  9. Read the following statements and choose the correct option. (I) ...

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  10. The quantum number of four electrons (el to e4) are given below :- ...

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  11. The energy of an electron of 2p(x) orbital is :

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  12. In group 15 elements, the number of unpaired electrons in valence shel...

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  13. The orientation of an orbital is governed by the quantum number k...

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  14. What is the maximum number of electrons in a subshell that can have th...

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  15. which of the following statements about an electron with m1=+2 is inco...

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  16. which of the following set of quantum numbers is impossible for an ele...

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  17. In a 3d subshell, all the five oprbitals are degenerate. What does it ...

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  18. which of the following subshell can accommodate as many as 10 electron...

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  19. which of the following statements is correct for an electron having az...

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  20. which of the following statements is incorrect?

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