List of top Chemistry Questions

In electrolytic refining of metals, the pure metal is taken as
Which one of the following is an acidic oxide ?
The nature of chemical used in antacid is
Which one of the following is strong acid ?
Metallic oxides are generally____in nature
The chemical formula of blue coloured Copper Sulphate crystal is_____
pH value of aqueous NaCl solution is
The number of six membered and five membered rings in Buckminster Fullerence respectively is
Primary structure in a nucleic acid contains bases as G A T G C …..… The chain which is complementary to this chain is
The property of the alkaline earth metals that increases with their atomic number is
RNA and DNA are chiral molecules, their chirality is due to the presence of
A hydrocarbon A (C4H8) on reaction with HCl gives a compound B (C4H9Cl) which on reaction with 1 mol of NH3 gives compound C (C4H10N). On reacting with NaNO2 and HCl followed by treatment with water, compound C yields an optically active compound D. The D is
Permanent hardness cannot be removed by
The method by which aniline cannot be prepared is

The product B is
Which is the most suitable reagent for the following conversion ?
Chemical Reaction and Compound
Which of the following is not true for oxidation ?
Chemical Reaction
A and C are
The reagent which can do the conversion CH3COOH → CH3 - CH2 - OH is
Chemical Equation
A, B and C respectively are
Ka values for acids H2SO3, HNO2, CH3COOH and HCN are respectively 1.3 × 10-2, 4 × 10-4, 1.8 × 10-5 and 4 × 10-10, which of the above acids produces stronger conjugate base in aqueous solution ?
In set of reactions, identify D
Chemical Reactions
A compound ‘A’ (C7H8O) is insoluble in NaHCO3 solution but dissolve in NaOH and give a characteristic colour with neutral FeCl3 solution. When treated with Bromine water compound ‘A’ forms the compound B with the formula C7H5OBr3. ‘A’ is
An organic compound ‘X’ on treatment with PCC in dichloromethane gives the compound Y. Compound ‘Y’ reacts with I2 and alkali to form yellow precipitate of triiodomethane. The compound X is
For the reaction A(g) + B(g) ⇌ C(g) + D(g); ΔH = -QKJ
The equilibrium constant cannot be disturbed by