What is the difference between a double salt and a complex? - Vidyadip

Question

What is the difference between a double salt and a complex?

✓

Answer

→ Both double salts as well as complexes are formed by the combination of two or more stable compounds in stoichiometric ratio.
→ They differ in the fact that double salts such as carnallite, $KCl . \quad MgCl _2 .\ \ 6 H _2 O$, Mohr's salt, $FeSO _4 \cdot\left( NH _4\right)_2 SO _4 \cdot 6 H _2 O$, potash alum, $KAl \left( SO _4\right)_2 \cdot 12 H _2 O$, etc. Dissociate into simple ions completely when dissolved in water.
→ However complex ions such as $\left[ Fe ( CN )_6\right]^{4-}$ of $K _4$ $\left[ Fe ( CN )_6\right]$ do not dissociate into $Fe ^{2+}$ and $CN ^{-}$ ions.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "2 Marks Questions" from Coordination Compounds→Coordination Compounds — all question types→Chemistry STD 12 Science question papers→Rajasthan Board STD 12 Science question papers→Rajasthan Board question paper generator→

Similar questions

Write a note on Cannizzaro reaction.

Consider the standard electrode potential values $\left(\frac{M^{2+}}{M}\right)$ of the elements of the first transition series.

$Ti$	$V$	$Cr$	$Mn$	$Fe$	$Co$	$Ni$	$Cu$	$Zn$
$-1.63$	$-1.18$	$-0.90$	$-1.18$	$-0.44$	$-0.28$	$-0.25$	$+0.34$	$-0.76$

Explain:
i. $E^\circ$ value for copper is positive.
ii. $E^\circ$ value of $Mn$ is more negative as expected from the trend.
iii.$Cr^{3+}$ is a stronger reducing agent than $Fe^{2+}.$

What is meant by inversion of sugar?

'Alcohols are versatile compounds' discuss exaction of this statement by giving suitable example.

Use Hund's rule to derive the electronic configuration of Ce³⁺ ion, and calculate its magnetic moment on the basis of 'spin-only' formula.

What happens when the vapours of a primary, secondary and tertiary alcohol are passed over heated copper at 573 K temperature? Explain with chemical equation.

Explain Crystal field splitting theory

What purine and pyrimidine bases are present in DNA and RNA?

Discuss the physical properties of carboxylic acids in terms of their physical state and boiling point.

Compound $A$ was prepared by oxidation of compound $B$ with alkaline $KMnO_{4-}.$ Compound $A$ on reduction with lithium aluminium hydride gets converted back to compound $B.$ When compound A is heated with compound $B$ in the presence of $H_2SO_4$ it produces fruity smell of compound $C$ to which family the compounds $A, B$ and $C$ belong to?