List of top Chemistry Questions

Find the product formed for the given reaction.
\[ C_6H_5CHO + H_3C-CH_2CHO \xrightarrow{\text{Dil. NaOH/Δ}} \text{Product} \]
What can be A and B in the following reaction?

The reaction of HClO3 with HCl gives a paramagnetic gas, which upon reaction with O3 produces

The reaction of HClO3 with HCl gives a paramagnetic gas, which upon reaction with O3 produces

The reaction of HClO3 with HCl gives a paramagnetic gas, which upon reaction with O3 produces

The reaction $Pb \left( NO _3\right)_2$ and $NaCl$ in water produces a precipitate that dissolves upon the addition of $HCl$ of appropriate concentration The dissolution of the precipitate is due to the formation of
The metal which dissolves in liquid ammonia to give a blue-black solution due to formation of solvated electron is
Which of the following compounds is used as refrigerant?
The number of radial nodes and angular nodes in a 4f orbital are respectively:
Calculated magnetic moment value for \( \text{Fe}^{2+} \) ion in Bohr Magnetons (BM) is:
The wavelength of the electron in the first orbit of hydrogen atom is \(3.3 \times 10^{-10} \, \text{m}\). The kinetic energy of the electron (in J) is: (Given: \( h = 6.6 \times 10^{-34} \, \text{Js}, \, m_e = 9.0 \times 10^{-31} \, \text{kg} \))
The correct statement of the following is
Which quantum number provides information about the shape of an orbital?
The energy required (in eV) to excite an electron in a hydrogen atom from the ground state to the third state is:
Calculate the molarity of a solution containing 5g of NaOH in 450 mL solution .
What is the functional group present in serine, an amino acid, in addition to \( -\text{NH}_2 \) and \( -\text{COOH} \) groups?
Which hormone tends to increase the blood glucose level in humans?
Which of the following molecules is eliminated during peptide bond formation?
Which of the following is Indian saltpetre?
In the following unbalanced reaction, the product formed is:
NaAlO$_2$ + Al(OH)$_3$ + H$_2$O $\rightarrow$ ?
Pernicious anemia is caused due to deficiency of which vitamin?
Which of the following vitamins cannot be stored in the body?
Hydrolysis of nucleic acid gives nitrogenous base sugar and ________
Sugar present in DNA is
The general formula of the compound formed when a metal (M) of group - 1 reacts with non metal (x) of group - 16 is