List of top Chemistry Questions

Which of the following amines is not represented by formula \(\text{C}_3\text{H}_9\text{N}\) ?
Which of the following is the strongest carboxylic acid?
Identify the name of reaction when phenol reacts with chloroform in aqueous NaOH.
In benzylic halides, the halogen atom is bonded to
Method of preparation of alkyl halide
\(2\text{R-Br}+\text{Hg}_2\text{F}_2\rightarrow 2\text{R-F}+\text{Hg}_2\text{Br}_2\)
This reaction is known as
Which of the following ligands splits d orbitals to maximum level?
Which of the following is a correct feature of the \(\text{SN}^2\) mechanism?
Which of the following is used as solvent for Grignard reagent?
Identify weakest acid from following.
Identify the complex having the highest number of unpaired electrons from following.
What is the role of catalyst in catalytic reaction ?
Which of the following elements has completely filled 4 f orbital at the expected ground state configuration?
Which of the following elements in +3 oxidation state forms colourless compounds?
Which of the following exhibits the minimum coagulating power for precipitating of positively charged ferric oxide sol ?
For the reaction \(2\text{A}⟶3\text{C}+\text{D}\), the rate of reaction is represented by
The rate of reaction \(\text{A}+\text{B}\rightarrow \text{P}\) is \(4\times 10^{-2} \text{mol dm}^{-3} \text{s}^{-1}\)
When \([A] = 0.2 \text{mole dm}^{-3}\) and \([B] = 0.1 \text{mole dm}^{-3}\), What is the rate constant of reaction, if it is first order with respect to A and second order with respect to B ?
Which of the following is an electrolyte in dry cell ?
Which of the following is applicable to thin film?
The \(E_{\text{cell}}^0\) of \(\text{Al}_{(s)}|\text{Al}^{3+}(1\text{M})||\text{Pb}^{2+}(1\text{M})|\text{Pb}_{(s)}\) cell is 1.5 V if \(E_{\text{Pb}}^0\) is \(-0.14\) V then \(E_{\text{Al}}^0\) will be
Which of the following colligative properties is useful to determine the molar masses of proteins, polymers or colloids, with the greatest precision?
Calculate the concentration of silver nitrate solution if molar conductivity and conductivity of silver nitrate at \(25^{\circ}\)C are respectively 120 ohm\(^{-1}\) cm\(^2\) mol\(^{-1}\) and 0.0024 ohm\(^{-1}\) cm\(^{-1}\).
Calculate the number of atoms present in 1.625 g metal if it forms bcc unit cell structure.
\([ρ\times a^3 = 3.25\times 10^{-22} \text{g}]\)
Identify the false statement regarding magnetic properties of substance.
(A) Paramagnetic substances are weakly attracted.
(B) Diamagnetic substances are weakly attracted.
(C) Ferromagnetic substances strongly attracted.
(D) Diamagnetic substance strongly attracted
If a 0.4 molal solution of a nonvolatile solute in organic solvent decreases its freezing point by 2.4 K., then the molal depression constant of solvent will be
Identify the covalent crystal from the following.