NEET (UG) entrance exam Question Bank Solutions for Chemistry

Proteins are condensation polymers of:

Soft drinks and baby feeding bottles are generally made up of ______.

In the reaction, alcohol + diazomethane → ether + N₂; the ether cannot be ______.

Primary, secondary and tertiary amines may be separated by using ______.

Choose the correct option for a graphical representation of Boyle’s law, which shows a graph of pressure vs. volume of a gas at different temperatures:

For a reaction, A `→` B, enthalpy of reaction is −4.2 kJ mol⁻¹ and enthalpy of activation is 9.6 kJ mol⁻¹. The correct potential energy profile for the reaction is shown in option.

Identify the compound that will react with Hinsberg’s reagent to give a solid which dissolves in alkali.

Identify the compound that will react with Hinsberg’s reagent to give a solid which dissolves in alkali.

For a reaction, A `→` B, the enthalpy of reaction is −4.2 kJ mol⁻¹ and the enthalpy of activation is 9.6 kJ mol⁻¹. The correct potential energy profile for the reaction is shown in the option.

Assertion: The presence of nitro group at m-position (with respect to halogen atom) greatly activates the haloarenes towards nucleophilic substitution reactions.

Reason: In the case of m-substituted haloarenes, there is no negative charge at m-position in the resonating structures.

Pure phenol is ______.

Aromatic amines are used for the manufacture of ______.

Which of the following is CORRECTLY matched?

Which of the following can be directly solidified from the gaseous state?  

The defects which arise due to irregularities or deviations from the ideal arrangement in an entire row of lattice points are called ______

Depression of freezing point in any dilute solution is directly proportional to ______

For the decomposition of hydrogen iodide at 127°C, the fraction of molecules having energy equal to or greater than activation energy can be given as ______.

An alkene 'X' on ozonolysis produces two moles of isovaleraldehyde. Predict the IUPAC name of the alkene. 

The cell constant is the product of resistance and ______

Impure

\[\ce{Ni + 4CO ->[(60-80)°C] Ni(CO)₄ ->[180°C] Ni + 4CO}\]

The above process of purification of the metal is known as-