List of top Chemistry Questions

α–halogenation of carboxylic acid is called
Which antibiotic from the following contains N = N linkage?
What type of hybridization results in trigonal geometry?
What type of hybridization is observed in interhalogen compounds of the type XX\(_3\)?
Which of the following pairs of moving phase and stationary phase respectively is correct for column chromatography?
Identify the product obtained when phenol is treated with bromine water.
A solution has an osmotic pressure of X kPa at 300 K having one mole of solute in \(10.5\ \text{m}^3\) of solution. If its osmotic pressure is reduced to \(\frac{1}{10}\) of its initial value, what is the new volume of solution?
Which of the following polymers contain ester linkage?
A solution is 0.50% by weight. What is the weight of solvent containing 2.50 g solute?
Identify product B in the following reaction.
Phenol \(\xrightarrow{\text{NaOH}}\) A \(\xrightarrow{\text{CH}_3\text{I}}\) B
Which of the following statements is correct according to Werner’s theory, when excess AgNO\(_3\) is treated with CoCl\(_3\)\(\cdot\)6NH\(_3\) precipitating three moles of AgCl?
A metallic element crystallises in FCC type crystal lattice. What is the radius of atom if edge length of its unit cell is 405 pm?
Silver crystallises in face centred cubic structure. If radius of silver atom is 144.5 pm, what is the edge length of unit cell?
The most unstable free radical among the following is
The overlap of orbitals involved in the formation of C–Br bond in vinyl bromide is
Identify the major product ‘B’ in the following reaction.
Propene \(\xrightarrow{\text{HCl}}\) A \(\xrightarrow[\Delta]{\text{Aq. KOH}}\) B
A certain zero order reaction has rate constant 0.025 M s\(^{-1}\). What will be the concentration of reactant A after 15 seconds if initial concentration is 0.50 M?
Which of the following metals is refined by using a tungsten filament for heating in a vessel so that the pure metal deposits on the filament?
Identify IUPAC name of the following compound.
CH\(_2\)=CH–CH=CH–CH\(_2\)–Cl
Which among the following hydrides has low bond dissociation energy of M–H bond (M = central atom)?
Which of the following acids does not undergo HVZ reaction?
Which of the following reactions of alcohols involves breaking of O–H bond?
What will be the minimum pressure required to compress 500 dm\(^3\) of air at 1 bar to 200 dm\(^3\) at 30\(^\circ\)C?
Which of the following polymers is obtained when glycolic acid combines with lactic acid?
Which of the following properties is NOT of actinoids?