List of top Chemistry Questions

The mass of particle X is four times the mass of particle Y. The velocity of particle Y is four times the velocity of X. The ratio of de Broglie wavelengths of X and Y is: 

Given below are two statements:
Statement-I: The orbitals having same energy are called as degenerate orbitals.
Statement-II: In hydrogen atom, 3p and 3d orbitals are not degenerate orbitals.
In the light of the above statements, choose the most appropriate answer from the options given
Number of metal ions characterized by flame test among the following is _______.
$\text{Sr}^{2+}, \text{Ba}^{2+}, \text{Ca}^{2+}, \text{Cu}^{2+}, \text{Zn}^{2+}, \text{Co}^{2+}, \text{Fe}^{2+}$
Identify B formed in the reaction.
\[ \text{Cl} - \text{(CH}_2\text{)}_4 - \text{Cl} \xrightarrow{\text{excess NH}_3} A \xrightarrow{\text{NaOH}} B + \text{H}_2\text{O} + \text{NaCl} \]
Which of the following tests is positive for the given compound [A]? 
tests is positive
Which of the following alkyl halides will undergo \( S_N1 \) reaction most readily?
Which of the following relation is not correct?
100 mL of 0.04 N HCl aqueous solution is mixed with 100 mL of 0.02 N NaOH solution. The pH of the resulting solution is:
The reaction 
Gattermann-Koch reaction
Specific conductance of 0.1 M HNO\(_3\) is \(6.3 \times 10^{-2} \, \text{ohm}^{-1} \, \text{cm}^{-1}\). The molar conductance of the solution is:
Which of the following does not form a chelate?
Which of the following arrangements does not represent the correct order of the property stated against it?
How many conformations are possible for ethane?
The greater the valence of the flocculating ion added, the greater is its power to cause precipitation of a colloid. This rule is:
For which one of the following sets of four quantum numbers, an electron will have the highest energy? 
quantum numbers
Hoffmann bromamide degradation reaction is shown by which of the following?
Hoffmann bromamide
The statement that is not correct for periodic classification of elements is:
Phenol does not undergo nucleophilic substitution reaction easily due to:
Which of the following statements is false?
Element not showing variable oxidation state is:
The acidic, basic and amphoteric oxides, respectively, are:
\(PCl_{5}\) is dissociating 50% at 250°C at a total pressure of \( P \) atm. If the equilibrium constant is \( K_p \), then which of the following relation is numerically correct?
The number of hydrogen bonds formed by a water molecule at normal conditions is:
The decreasing order of reactivity towards dehydrohalogenation (\(E_1\)) reaction of the following compounds is: 
decreasing order
 
Lanthanoid which has the smallest size in \( +3 \) state is: