List of top Chemistry Questions

What is the oxidation state of Chlorine in \( Cl_2O_7 \)?
In a BCC (Body-Centered Cubic) unit cell, what is the coordination number?
What is the product when Phenol reacts with neutral Ferric Chloride?
Which element has the highest electronegativity in the periodic table?
What is the de Broglie wavelength of a particle at rest?
Calculate the pH of a \(0.001\, M\) \(NaOH\) solution at \(25^\circ C\).
In the electrolysis of molten NaCl, the product obtained at the cathode is:
Calculate the mass percentage of benzene if 22 g of benzene is dissolved in 122 g of carbon tetrachloride.
What is the coordination number of an atom in an FCC unit cell?
One mole of an alkene on ozonolysis gives a mixture of one mole pentan-3-one and one mole methanal. The alkene is
Which has minimum bond angle?
An example of electrophilic substitution reaction is :
IUPAC name of the compound \([\text{Co}(\text{NH}_3)_5\text{ONO}]\text{Cl}_2\) is
Which is incorrect regarding Bohr model?
1-phenyl-2-chlorobutane on reaction with EtOH/EtOK produces a product which on treatment with HBr produces
When sodium fusion extract of a compound is boiled with Iron (II)sulphate and then acidified with conc.sulphuric acid blood red colour is produced. The compound is ——?
For chemical reaction M \(\rightarrow\) N, the rate becomes 8 times when the concentration of M doubles, find the order of reaction with respect to M?
Find A, B, C
For a reaction \(\text{N}_2 + \text{O}_2 \rightleftharpoons 2\text{NO}\) . Given that \([\text{N}_2] = 2 \times 10^{-3}\), \([\text{O}_2] = 3 \times 10^{-3}\), \([\text{NO}] = 6 \times 10^{-6}\) Find the value of \(\text{K}_{\text{c}}\) for the reaction
IUPAC official name for the element shows atomic number 110?
For a \(\text{I}^{\text{st}}\) order reaction, 99% complete in 20 minutes, then the \(\text{t}_{1/2}\) will be : (log2 = 0.3)
Find the rate constant of a first order reaction A \(\rightarrow\) B reaction where \(\text{t}_{1/2} = 10 \text{ minutes}\) at \(300 \text{ K}\) is (Given log 2 = 0.3)
Which of the following orbitals donot have 4 lobes?
Find the % of composition of carbon in methane:
Which of the following yields Tarry product during oxidation: