Chromate ions are - in colour-blueblackyellowgreen

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Standard VII

Chemistry

Electrolytic Conductors

Chromate ions...

Question

Chromate ions are _______ in colour.

blue

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black

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yellow

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green

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Similar questions

16.6 m g

of solid silver chromate (molar mass =

332

) when put into

500 m L

water, silver ion and chromate ion are obtained. On adding more solid, the concentration of ions does not increase. If

100 m g

of solid is put into 2 litres of water, then the amount of solid remained undissociated would be :

Q. If the concentration of

C r O_{4}^{2 -}

ions in a saturated solution of silver chromate is

2 \times 10^{- 4}

; solubility product of silver chromate will be:

Q. Chromate and dichromate ions are:

we know that metals and nonmetals react to form ionic compounds and do not have a covalent bond. then why is it so that in polyatomic ions chromate, chromium has a covalent bond with non metal oxygen?

Q. A solution contains

0.05 m o l . {l i t r e}^{- 1}

{B a}^{2 +}

ions and

0.002 m o l . l i t r e

{A g}^{+}

ions. The metals are to be precipitated by addition of chromate ions,

C r O_{4}^{2 -}

. Which ion precipitates first? What percentage of this ion remain in the solution when the second ion begins to precipitate?

K_{s p} ({A g}_{2} C r O_{4}) = 3 \times 10^{12}; K_{s p} (B a C r O_{4}) = 1 \times 10^{- 10}

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