What are spectator ions? Give one example. - Vidyadip

Question

What are spectator ions? Give one example.

✓

Answer

Spectator ions are ions that stay unaffected during a chemical reaction. They appear both as reactant and as product in an ionic equation, e.g. in the following ionic equation, the sodium and nitrate ions are spectator ions.
$\text{Ag}^+\text{(aq)}+\text{NO}^-_3\text{(aq)}+\text{Na}^+\text{(aq)}+\text{Cl}^-\text{(aq)}\\\xrightarrow{\ \ \ \ \ \ \ \ }\text{AgCl(s)}+\text{Na}^+\text{(aq)}+\text{NO}^-_3\text{(aq)}$

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 Redox Reactions→Redox Reactions — all question types→Chemistry STD 11 Science question papers→Rajasthan Board STD 11 Science question papers→Rajasthan Board question paper generator→

Similar questions

What happen when sodium salt of fatty acids react with sodalime?

In a reaction
A + B₂ → AB₂
Identify the limiting reagent, if any, in the following reaction mixtures.
100 atoms of A + 100 molecules of B.

Ionic product of water at 310 K is $2.7 \times$ $10^{-14}$. What is the pH of neutral water at this temperature?

What is the symbol for SI unit of mole? How is the mole defined?

What is the relationship between standard oxidation potential and standard reduction potential?

How many significant figures should be present in the answer of the following calculations?
$\frac{2.5\times1.25\times3.5}{2.01}$

How does ionisation energy vary (i) down the group, (ii) along the period from left to right?

Write the electronic configuration of the following ions:
i. $H ^{-}$
ii. $Na ^{+}$
iii. $O ^{2-}$
iv. $F ^{-}$

CO₂ and SO₂ both are triatomic molecules but there is a big difference in their dipole moment, why?

Describe the theory associated with the radius of an atom as it.
loses an electron.