Amalgams are

  • A

    Highly coloured alloys

  • B

    Always solid

  • C

    Alloys which contain mercury as one of the contents

  • D

    Alloys which have great resistance to abrasion

Similar Questions

Consider the following reaction

$\mathrm{MnO}_2+\mathrm{KOH}+\mathrm{O}_2 \rightarrow \mathrm{A}+\mathrm{H}_2 \mathrm{O} .$

Product ' $A$ ' in neutral or acidic medium disproportionate to give products ' $\mathrm{B}$ ' and ' $\mathrm{C}$ ' along with water. The sum of spin-only magnetic moment values of $B$ and $C$ is . . . . . .$BM$. (nearest integer)

(Given atomic number of $\mathrm{Mn}$ is $25$ )

  • [JEE MAIN 2024]

The set having ions which are coloured and paramagnetic both is :

  • [JEE MAIN 2021]

While filling up of electrons in the atomic orbitals, the $4 s$ orbital is filled before the $3 d$ orbital but reverse happens during the ionisation of the atom. Explain why?

What can be inferred from the magnetic moment values of the following complex species?

Example Magnetic Moment $(BM)$
$K _{4}\left[ Mn ( CN )_{6}\right.$ $2.2$
$\left[ Fe \left( H _{2} O \right)_{6}\right]^{2+}$ $5.3$
$K _{2}\left[ MnCl _{4}\right]$ $5.9$

Which of the following statement is Correct