Incorrect match is

ppt    $\rightarrow$      colour

  • A

    $Fe(OH)_3$   $\rightarrow$    Red brown

  • B

    $Cu_2[Fe(CN)_6]$  $\rightarrow$     Chocolate brown

  • C

    $BaSO_4$  $\rightarrow$    Green

  • D

    $ZnS$  $\rightarrow$    Greenish white

Similar Questions

Which of the following statements are correct about $\mathrm{Zn}, \mathrm{Cd}$ and $\mathrm{Hg}$ ?

$A$. They exhibit high enthalpy of atomization as the d-subshell is full.

$B$. $\mathrm{Zn}$ and $\mathrm{Cd}$ do not show variable oxidation state while $\mathrm{Hg}$ shows $+\mathrm{I}$ and + $II.$

$C$. Compounds of $\mathrm{Zn}, \mathrm{Cd}$ and $\mathrm{Hg}$ are paramagnetic in nature.

$D$. $\mathrm{Zn}, \mathrm{Cd}$ and $\mathrm{Hg}$ are called soft metals.

Choose the most appropriate from the options given below:

  • [JEE MAIN 2024]

Which is not true for transition elements

Which of the following statements regarding copper salts is not true?

Which of the following statements are correct?

$(A)$ The $M ^{3+} / M ^{2+}$ reduction potential for iron is greater than manganese

$(B)$ The higher oxidation states of first row $d$ block elements get stabilized by oxide ion.

$(C)$ Aqueous solution of $Cr ^{2+}$ can liberate hydrogen from dilute acid.

$(D)$ Magnetic moment of $V ^{2+}$ is observed between $4.4-5.2\,BM$

Choose the correct answer from the options given below:

  • [JEE MAIN 2023]

How would you account for the irregular variation of ionisation enthalpies (first and second) in the first series of the transition elements?