Amalgams are
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 $25$ )
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 :
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?
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 $(BM)$
$K _{4}\left[ Mn ( CN )_{6}\right.$
$2.2$
$\left[ Fe \left( H _{2} O \right)_{6}\right]^{2+}$
$5.3$
$K _{2}\left[ MnCl _{4}\right]$
$5.9$
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
Which of the following statement is Correct