List of top Chemistry Questions

Write any two fat soluble vitamins.

Determine the de Broglie wavelength of an electron accelerated through \(100\,V\).

The IUPAC name of ($CH_3-CH_2-CHO$) is:

Which of the following does not form benzoic acid on oxidation with alkaline \(KMnO_4\) followed by acidification?

On hydrolysis, which of the following carbohydrates gives only $\mathrm{\beta}$-glucose ?

The standard electrode potentials are: \[ E^\circ_{Cu^{2+}/Cu}=+0.34V \] \[ E^\circ_{Zn^{2+}/Zn}=-0.76V \] The standard emf of the Daniell cell is:

Find the energy of a photon with a wavelength of \(4000\,\text{\AA}\). (Take \( h = 6.63 \times 10^{-34}\,\text{Js} \), \( c = 3 \times 10^8\,\text{m/s} \)).

Write the name of product obtained, when selenium is treated with magnesium metal.

जलीय विलयन में \(1:3\) विद्युत अपघट्य (electrolyte) है :

An organic compound (P) on treatment with aqueous ammonia under hot condition forms compound (Q) which on heating with Br₂ and KOH forms compound (R) having molecular formula C₆H₇N. Names of P, Q and R respectively are.

For which of the following ions will the magnetic moment ($\mu$) be maximum?

Which of the following compounds shows coordination isomerism?
(A) \( [\text{Fe(NH}_3)_6] [\text{Co(CN)}_6] \)
(B) \( [\text{Cr(NH}_3)_6] [\text{Co(CN)}_6] \)
(C) \( [\text{Co(NH}_3)_6] [\text{Co(CN)}_6] \)
(D) \( [\text{Ag(NH}_3)_2] [\text{Ag(CN)}_2] \)
(E) \( [\text{Fe(NH}_3)_6] [\text{Cr(CN)}_6] \)

The bond order of $\text{Li}_2$ is _______ and it is _______.

When vapours of alcohol X are passed over heated copper at \(573\ K\), it gives an alkene. What is X?

The number of \(\sigma\)-bonds, \(\pi\)-bonds and lone pairs of electrons present in the product C respectively are \[ C_2H_5NO_2 \xrightarrow{Sn/HCl} A \xrightarrow[\text{Heat}]{CHCl_3+KOH} B \xrightarrow{H_2O} C \]

What is Y in the given sequence of reactions?

Identify the product \(Z\) formed in the given sequence of reactions

Among the following, identify the compound which will form resonance stabilized carbocations after the leaving group is lost.

Compounds: I, II, III, IV

In addition to \(-NH_2\) and \(-COOH\) groups, the functional group present in the amino acid serine is X and the functional group present in the amino acid cysteine is Y. X and Y are respectively

Identify the product Y in the following reaction sequence \[ C_2H_4 \xrightarrow[(ii)\ AgCN]{(i)\ HBr} X \xrightarrow[\text{Catalyst}]{H_2} Y \]

Which of the following has maximum number of electrons in \(t_{2g}\) orbitals?

Identify the pair of ions which act as good reducing agents.