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In Cro4^(2-) ion, Cr is ............. hy...

In `Cro_4^(2-)` ion, Cr is ............. hybridised.

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To determine the hybridization of chromium in the chromate ion \(\text{CrO}_4^{2-}\), we can follow these steps: ### Step 1: Determine the electronic configuration of chromium Chromium (Cr) has an atomic number of 24. Its electronic configuration can be written as: \[ \text{Cr: } [\text{Ar}] 3d^5 4s^1 \] This means that chromium has 5 electrons in the 3d subshell and 1 electron in the 4s subshell. ...
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Explore conceptually related problems

Account for the following : In CrO_(4)^(2-) ion , all the Cr-O bond length are equal

Assertion : K_(2)CrO_(4) has yellow colour due to charge transfer. Reason : CrO_(4)^(2-) ion is tetrahedral in shape.

In acidic medium, H_(2)O_(2) changes Cr_(2)O_(7)^(2-) ion to CrO_(5) . The oxidation states of Cr in Cr_(2)O_(7)^(2-) and CrO_(5) are respectively :

If the concentration of CrO_4^(2-) ions in a saturated solution of silver chromate is 2xx10^(-4) , solubility product of silver chromate will be:

Assertion : In acidic medium, K_2Cr_2O_7 exists as Cr_2O_7^(2-) (orange) while in basic medium it is converted to CrO_4^(2-) (yellow). Reason : K_2Cr_2O_7 is hygroscopic in nature and changes colour on reaction with water.

In a chrome plating plant, CrO_4^(2-) (chromate) ions are present in waste water. The chromate ions are reduced to insoluble chromium hydroxide, Cr(OH)_3 , by dithionate ion, S_2O_4^(2-) in basic medium. CrO_4^(2-)+S_2O_4^(2-)+overset(ɵ)(O)H+H_2OtoCr_2(OH_3)+SO_3^(2-) 10 L of water requires 522 g of Na_2S+2O_4 . Calculate the normality and molarity of CrO_4^(2-) in waste water. Also express the concentration of Na_2CrO_4 in ppm.

The [CrO_(4)^(2-)] ions are equilibrium for the reaction, Cr_(2)O_(7)^(2-)+H_(2)Oharr2CrO_(4)^(2-)+2H^(+), "at" pH=4 is:

Knowledge Check

  • Chromate ion, CrO_4^(2-) is

    A
    Diamagnetic, orange in colour
    B
    Paramagnetic, yellow in colour
    C
    Diamagnetic, yellow in colour
    D
    Paramagnetic, orange in colour

  • The shape of CrO_(4)^(2-) is ….and Cr atom involves.l..hydrization.

    A
    square planar, `dsp^(2)`
    B
    tetrahedral, `sp^(3)`
    C
    square planar, `d^(2)sp^(3)`
    D
    linear, sp.

  • Assertion : K_(2)CrO_(4) has yellow colour due to charge transfer. Reason : CrO_(4)^(2-) ion is tetrahedral in shape.

    A
    If both assetion and reason are true and the reason is the correct explanation of the assertion.
    B
    If both assertion and reason are ture but reason is not the correct explanation of the assertion.
    C
    If assertion is true but reason is false.
    D
    If assertion is false but reason is true.
    • MODERN PUBLICATION-D AND F-BLOCK ELEMENTS-QUICK MEMORY TEST (B. COMPLETE THE MISSING LINKS)
    1. In Cro4^(2-) ion, Cr is ............. hybridised.

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    2. General electronic configuration of transition metals is

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    3. Which is the most common oxidation state exhibited by lanthanoids ?

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    4. The highest oxidation state exhibited by a transition elements is .

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    5. The chromate ion in acidic medium changes to

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    6. The formula of chromite is .......

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    7. The most abundant transition metal in earth crust is :

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    8. The spin only magnetic moment for ion having d^8 electronic configurat...

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    9. When K2Cr2o7 is heated to red hot the products are ............, ........

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    10. The reaction of NaCl and K2Cr2O7 with conc. H2SO4 results in the forma...

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    11. The most common mineral containing lanthanoids is.......

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    12. In the following transition metals, the maximum number of oxidation st...

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    13. The theoretical magnetic moment of Ti^(3+) ion is ............. B.M.

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    14. In acidic medium, equivalent weight of K(2)Cr(2)O(7) (molecular weight...

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    15. CrO3 is an acidic hydride of .............

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    16. Two lanthanoids ........... and .......... show +4 oxidation states.

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    17. Write the formula and IUPAC name of prussian blue.

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    18. The actinoid used for manufacture of fine rods for atomic reactors is ...

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    19. The last ement in actinide series is

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