List of top Chemistry Questions

List various types of isomerism possible for coordination compounds, giving an example of each
The tenth element in the periodic table resembles the element with atomic number
Direct nitration of aniline is not a feasible process because
The increasing order of the density of alkali metals is
Match the following correctly
Arrange the following ions in the order of decreasing X-0 bond length, where X is the central atom in $SiO_4^{4-},ClO_4^- ,PO_4^{3-},SO_4^{2-}$
Detergents are known to pollute rivers and waterways. However, detergents can be made biodegradable and pollution free by taking
Glucose on oxidation with bromine water gives
Which one of the following has a different crystal lattice from those of the rest?
In the estimation of sulphur by Carius method, $0.480\, g$ of an organic compound gives $0.699 \,g$ of barium sulphate. The percentage of sulphur in this compound is (Atomic masses: $Ba\, = 137, S = 32, 0 = 16)$
The crystal field splitting energy for octahedral $(\Delta_0)$ and tetrahedral $(\Delta_t) $complexes is related as
The reaction of $ CHC{{l}_{3}} $ and alcoholic $ KOH $ with $ p $ -toluidine gives
Consider the following statements concerning $N_2H_4$ 1. It is an exothermic compound 2. It burns in air with the evolution of heat 3. It has kinetic stability 4. In reduces $Fe^{3+}$ to $Fe^{2+}$ in acidic medium Which of the following combination is correct?
The correct order of ease of cleavage of ether linkage by hydrogen halide follows
Dry air is passed through a solution containing $ 10\,g $ of a solute in $ 90\,g $ of water and then through pure water. The loss in weight of solution is $ 2.5\,g $ and that of pure solvent is $ 0.05 \,g $ . Calculate the molecular weight of the solute.
Which one of the following amines forms a non-acidic and alkali insoluble product with p-toluenesulphonyl chloride?
When methane is heated with dioxygen in the presence of $Mo_2O_3$ catalyst, the organic product obtained is
Which of the following pairs contain metalloid elements in the periodic table?
For a first order reaction, the time taken to reduce the initial concentration by a factor of 1/4 is 20 min. The time required to reduce initial concentration by a factor of 1/16 is
The expression for van der Waals equation for the gas law is
In neutral or faintly alkaline medium, thiosulphate is quantitatively oxidized by $KMnO_4$ to
Benzoic acid when heated with soda ltme yields
Nitrogen shows different oxidation states in the range
The metal that produces red-violet colour in the non-luminous flame is
When $H_2$ and $CO$ are reacted in the presence of $Cu$ catalyst, the product/s obtained is/are