List of top Chemistry Questions

The correct structure of product ‘A’ formed in the following reaction, 

(Ph is – C6H5) is

Which one of the following is NOT a copolymer?

Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A : Dacron is an example of polyester polymer.
Reason R : Dacron is made up of ethylene glycol and terephthalic acid monomers.
In the light of the above statements, choose the most appropriate answer from the options given below.

The eutrophication of water body results in:
The quantity of electricity of Faraday needed to reduce \(1\) mol of \(Cr_2O_7^{2-}\) to \(Cr^{3+}\) is
Fig. Reaction

Consider the above reaction. The number of π electrons present in the product ‘P’ is _____ .

Fe3+ cation gives a Prussian blue precipitate on addition of potassium ferrocyanide solution due to the formation of:
On the surface of polar stratospheric clouds, hydrolysis of chlorine nitrate gives A and B while its reaction with HCl produces B and C. A, B and C are, respectively
Stearic acid and polyethylene glycol react to form which one of the following soap/s detergents?
Concentrated \(HNO_3\) reacts with Iodine to give
100 mL of 5% (w/v) solution of NaCl in water was prepared in 250 mL beaker. Albumin from the egg was poured into NaCl solution and stirred well. This resulted in a/an :
Which one of the following is a water soluble vitamin, that is not excreted easily?
Amongst BeF2, BF3, H2O, NH3, CCl4 and HCl, the number of molecules with non-zero net dipole moment is ______.
For a first order reaction \(A → B\), the rate constant, \(k = 5.5×10^{–14}s^{–1}\). The time required for 67% completion of reaction is \(x×10^{–1}\) times the half life of reaction. The value of \(x\) is _____. (Nearest integer)

The final product ‘C’ in the following series of reactions

Arrange the following carbocations in decreasing order of stability.
carbocations
Match List-I with List-II
List-I(Mixture) List-II(Purification Process)
(A) Chloroform & Aniline(I) Steam distillation
(B) Benzoic acid & Napthalene(II) Sublimation
(C) Water & Aniline(III) Distillation
(D) Napthalene & Sodium chloride(IV) Crystallisation
Choose the correct answer from the options given below:
In alanylglycylleucylalanyvaline, the number of peptide linkages is__,
The drug tegamet is:
Among the following which is the strongest oxidizing agent?
Refining using the liquation method is the most suitable for metals with:
The difference between spin only magnetic moment value of \([Co(H_2O)_6]Cl_2\) and \([Cr(H_2O)_6]Cl_3\) is ________ .
Which of the following is the correct plot for the probability density ψ2(r) as a function of distance ‘r’ of the electron from the nucleus for 2s orbital?

The reagent, from the following, which converts benzoic acid to benzaldehyde in one step is

The major product in the following reaction is:
 

Fig. Chemical Reaction