List of top Chemistry Questions asked in NEET (UG)

Mixture of chloroxylenol and terpineol acts as

An example of a sigma bonded organometallic compound is :

A first order reaction has a specific reaction rate of $10^{-2} \, sec^{-1}$. How much time will it take for $20\, g$ of the reactant to reduce to $5\, g$ ?

In which pair of ions both the species contain S – S bond?

Which of the following pairs of species have the same bond order ?

Ionic mobility of which of the following alkali metal ions is lowest when aqueous solution of their salts are put under an electric field ?

It is because of inability of $ns^{2}$ electrons of the valence shell to participate in bonding that:-

A gas is allowed to expand in a well insulated container against a constant external pressure of $2.5\, atm$ from an initial volume of $2.50\, L$ to a final volume of $4.50\, L$. The change in internal energy $\Delta U$ of the gas in joules will be

Concentration of the $Ag^+$ ions in a saturated solution of $Ag_2C_2O_4$ is $2.2 \times 10^{-4}\, mol\, L^{-1}$ Solubility product of $Ag_2C_2O_4$ is :-

Correct increasing order for the wavelengths of absorption in the visible region the complexes of $Co^{3+}$ is :

The correct increasing order of basic strength for the following compounds is

Extraction of gold and silver involes leaching with $CN^-$ ion. Silver is later recovered by :-

For a given reaction, $\Delta H =35.5\, kJ\, mol ^{-1}$ and $\Delta S =83.6\, JK ^{-1}\, mol ^{-1} .$ The reaction is spontaneous at $:$ (Assume that $\Delta H$ and $\Delta S$ do not vary with temperature)

The e.m.f. of a Daniell cell at $298\, K$ is $E _{1}$. $Zn / SO _{4}(0.01 M ) \| CuSO _{4}(1.0 M ) / Cu$ When the concentration of $ZnSO _{4}$ is $1.0\, M$ and that of $CuSO _{4}$ is $0.01\, M$, the e.m.f. is changed to $E _{2}$. What is the relationship between $E _{1}$ and $E _{2}$ :

The correct statement regarding electrophile is :

The IUPAC name of the compound

The process of separation and purification of expressed protein before marketing is called :

With respect to the conformers of ethane, which of the following statements is true ?

Which one is the wrong statement ?

Which one is the correct order of acidity ?

Which of the following reactions is appropriate for converting acetamide to methanamine ?

Which of the following is dependent on temperature?

$HgCl_2$ and $I_2$ both when dissolved in water containing $I^-$ ions the pair of species formed is :

Consider the reactions :- Identify $A, X, Y$ and $Z$

Which one is the most acidic compound ?