List of top Chemistry Questions

IUPAC name of benzylamine is
Half life of first order reaction is 20 minutes. What is the time taken to reduce the initial concentration of the reactant to $\dfrac{1{10}$th?}
What is the mass of an fcc unit cell if mass of one atom of an element is $6 \times 10^{-23$ g?}
Which of the following alcohols is prepared by acid catalysed hydration of alkenes?
Which among the following formulae represents glycollic acid?
Which of the following is a major product obtained in the reaction of isobutylene with hydrogen bromide?
Which of the following equations is correct for heat of sublimation?
Identify the type of drug used to reduce pain and irritation of stomach?
When 2 moles of an ideal gas are expanded isothermally from a volume of 12.5 L to 15.0 L against constant external pressure of 760 mm Hg, calculate the amount of work done in joule?
Which of the following formula represents laughing gas?
Which of the following statements is true for electrolytic cell?
What is the value of primary valence of Co in CoCl$_3$?
Which among the following is correct when energy of activation, $E_a$, of the catalyzed reaction decreases at constant temperature and for same concentration?
According to Raoult's law, relative lowering of vapour pressure for a solution containing a non-volatile solute is equal to
Which among the following substituent groups decreases the acidic strength of aromatic carboxylic acid?
Which among the following elements has the lowest density and is lightest?
What is the value of radius ratio of ionic crystal having coordination number six?
Which of the following carbonyl compounds does NOT undergo aldol condensation?
Which of the following reactions does NOT yield an amine?
What is the molar conductivity of 0.1 M NaCl if its conductivity is \(1.06 \times 10^{-2} \, \Omega^{-1} \, \text{cm}^{-1}\text{cm}^{-1}\)?
If a mixture of iodomethane and iodethane is treated with sodium metal in presence of dry ether, it forms:
What is the boiling point of heavy water?
What is the effective atomic number of Fe in [Fe(CN)\(_6\)]\(^{4-}\) (At. no. of Fe = 26)?
Identify 'Z' in the following series of reactions: \[ \text{Butan-2-ol} \xrightarrow{\text{PCl}_3} X \xrightarrow{\text{alc. KOH}} Y \xrightarrow{i) \, \text{H}_2\text{SO}_4, \, ii) \, \text{H}_2\text{O}/\text{heat}} Z \]
What happens during Bessemerization process of extraction of copper from copper pyrites?