List of top Chemistry Questions

If resistivity of 0.8 M KCl solution is \( 2.5 \times 10^{-3} \, \Omega \, \text{cm} \), calculate molar conductivity of solution?
In gas phase, \( \text{H-O-O-H} \) bond angle in \( \text{H}_2\text{O}_2 \) is
Solutions A, B, C and D are respectively 0.2 M urea, 0.10 M NaCl, 0.05 M BaCl₂ and 0.05 M AlCl₃. All solutions are isotonic with each other except
Which among the following compound is NOT optically active?
Which of the following benzylic alcohol is tertiary alcohol?
An element crystallizes in a bcc lattice with cell edge of 500 pm. The density of the element is 7.5 g/cm\(^3\). How many atoms are present in 300 g of metal?
What is the number of =N-OH groups present in dimethyl glyoximato?
Which of the following metals is refined by vapour phase refining in Mond process?
Propane nitrile on reaction with ethyl magnesium iodide in the presence of dry ether gives complex. This imine complex on acid hydrolysis forms
Which of the following reactions proves the chlorinating property of phosphorus pentachloride?
Which among the following carbocation is most reactive?
A first order reaction has a rate constant 0.00813 min\(^{-1}\). How long will it take for 60% completion?
If the entropy of a solid is greater than zero, at \( T = 0 \), it is called
Which of the following actinoids exhibits only +3 oxidation state?
Identify the process of refining to obtain pig tin.
Which among the following is used as an oxidizing agent to bleach wood pulp into white paper?
60 g of CH₃COOH dissolved in 1 dm³ solvent. What is molality of solution? (density = 1.25 g/cm³)
Which of the following elements belongs to the first inner transition series?
A solution of CuSO₄ is electrolyzed using a current of 1.5 amperes for 10 minutes. What mass of Cu is deposited at the cathode? (At. mass of Cu = 63.7)
Which of the following is a multimolecular colloid?
Equilibrium constant for a reaction is 20. What is the value of \( \Delta G \) at 300 K? (\( R = 8 \times 10^{-3} \, \text{kJ mol}^{-1} \text{K}^{-1} \))
What is the osmotic pressure of a semi-molar solution at 27°C? (\( R = 0.0821 \, \text{atm L mol}^{-1} \text{K}^{-1} \))
What is the IUPAC name of hydroquinone?
Which among the following type of linkages is present in cellulose?
Identify the catalyst X used in the following reaction:
CH\(_3\)CH\(_2\)Br + 2[H] \(\xrightarrow{X}\) CH\(_3\)CH\(_3\) + HBr