Question:

Most acidic amongst the following is

Updated On: Jul 28, 2022

Hide Solution

Verified By Collegedunia

The Correct Option is C

Solution and Explanation

$-NO_2$ exhibits both $-l$ and $-R$ effect to stabilise the corresponding phenoxide ion. In ortho derivative, intermolecular H-bonding lowers the acidity.

Was this answer helpful?

Questions Asked in OJEE exam

The speed of a projectile is half of its initial speed at maximum height. Then, the angle of projection will be
- OJEE - 2025
- Projectile motion
View Solution
In the system shown below, $x(t)=\sin(t)u(t)$. In steady-state, the response $y(t)$ will be
- OJEE - 2025
- Frequency response
View Solution
The response of a network is $i(t) = K t e^{-\alpha t}$ for $t \ge 0$, where $\alpha$ is real and positive. The value of $t$ at which $i(t)$ will become maximum is,
- OJEE - 2025
- Network Theorems
View Solution
The time constant of the network shown in the figure is
- OJEE - 2025
- Network Theorems
View Solution
The parallel RLC circuit shown in the figure is in resonance. In this circuit,
- OJEE - 2025
- AC Circuits
View Solution

View More Questions

Concepts Used:

Acids and Bases

Acid is any hydrogen-containing substance that is capable of donating a proton (hydrogen ion) to another substance. Base is an ion or molecule capable of accepting a hydrogen ion from acid.

Physical Properties of Acids and Bases

Physical Properties	ACIDS	BASES
Taste	Sour	Bitter
Colour on Litmus paper	Turns blue litmus red	Turns red litmus blue
Ions produced on dissociation	H+	OH-
pH	<7 (less than 7)	>7 (more than 7)
Strong acids	HCl, HNO₃, H₂SO₄	NaOH, KOH
Weak Acids	CH₃COOH, H₃PO₄, H₂CO₃	NH4OH

Chemical Properties of Acids and Bases

Type of Reaction	Acid	Bases
Reaction with Metals	Acid + Metal → Salt + Hydrogen gas (H₂) E.g., Zn(s)+ dil. H₂SO₄ → ZnSO₄(Zinc Sulphate) + H₂	Base + Metal → Salt + Hydrogen gas (H₂) E.g., 2NaOH +Zn → Na2ZnO₂ (Sodium zincate) + H₂
Reaction with hydrogen carbonates (bicarbonate) and carbonates	Metal carbonate/Metal hydrogen carbonate + Acid → Salt + Carbon dioxide + Water E.g., HCl+NaOH → NaCl+ H₂O 2. Na₂CO₃+ 2 HCl(aq) →2NaCl(aq)+ H₂O(l) + CO₂(g) 3. Na₂CO₃+ 2H₂SO₄(aq) →2Na₂SO₄(aq)+ H₂O(l) + CO₂(g) 4. NaHCO₃+ HCl → NaCl+ H₂O+ CO₂	Base+ Carbonate/ bicarbonate → No reaction
Neutralisation Reaction	Base + Acid → Salt + Water E.g., NaOH(aq) + HCl(aq) → NaCl(aq) + H₂O(l)	Base + Acid → Salt + Water E.g., CaO+ HCl (l) → CaCl₂ (aq)+ H₂O (l)
Reaction with Oxides	Metal oxide + Acid → Salt + Water E.g., CaO+ HCl (l) → CaCl₂ (aq)+ H₂O (l)	Non- Metallic oxide + Base → Salt + Water E.g., Ca(OH)₂+ CO₂ → CaCO₃+ H₂O
Dissolution in Water	Acid gives H+ ions in water. E.g., HCl → H+ + Cl- HCl + H₂O → H₃O+ + Cl–	Base gives OH- ions in water.

Read more on Acids, Bases and Salts