List of top Chemistry Questions

Chlorobenzene reacts with Mg in dry ether to give a compound (\( A \)) which further reacts with ethanol to yield:
The most reactive amine towards dilute hydrochloric acid is:
How many moles of electrons are required for the reduction of 1 mole of \( \mathrm{Cr^{3+}} \) to \( \mathrm{Cr^0} \) (s)?
In an acidic buffer, if the ratio of base to acid concentration is increased by 100 times, then find the increase in pH of the buffer solution.
The density of a face-centered cubic (FCC) crystal is:
The plot that represents the zero-order reaction is:

The products formed in the following reaction, A and B, are: 

Which one of the lanthanoids given below is the most stable in divalent form?
Specific conductance of \( 0.1 \, \text{M} \, \text{HNO}_3 \) is \( 6.3 \times 10^{-2} \, \text{ohm}^{-1} \, \text{cm}^{-1} \). The molar conductance of the solution is:
The rate constant for a first-order reaction whose half-life is 480 seconds is:
In the following scheme of reaction.
Chemical Reac
X, Y and Z respectively are:
A first order reaction is half completed in 45 minutes. How long does it need for 99.9% of the reaction to be completed?
The mass of sodium acetate (CH3COONa) required to prepare 250 mL of 0.35 M aqueous solution is g. (Molar mass of CH3COONa is 82.02 g/mol)
In the contact process of manufacturing \(\text{H}_2\text{SO}_4\), the arsenic purifier used in the industrial plant contains:
In 2-chloro-3,4-dimethylhexane, how many chiral carbon atoms are present?
Trans-esterification is a reaction between
Which of the following compound(s) is/are chiral?
What is the integrated rate equation for a first-order reaction?
Arrange the following substances in decreasing order of their boiling points:
Which of the following alkanes is tertiary?
Find the total volume of a unit cell given the radius of the atom.
Find the pH if \( pK_b \), \([ \text{base} ]\), and \([ \text{salt} ]\) are given.
From the options given below, which one of the following is a primary amine?
The correct sequence of enzymes involved in the commercial production of ethanol by fermentation from sugar is:
It is postulated that huge deposits of NaCl (rock salt) and CaCO3 (chalk and marble) are sites of erstwhile oceans, where the salts had been concentrated through weathering by rain and wind and leaching by rivers. Select the correct explanatory statement in this context.