List of top Chemistry Questions asked in AIIMS

Treatment of chloroethane with a saturated solution of $AgCN$ gives ethyl isocyanide as the major product. Cyanide $\left( CN ^{-}\right)$is an ambident nucleophile.

Reaction of alcohols with $SOCl _{2}$ is catalysed by the presence of a tertiary amine $\left(R_{3} N \right)$. Tertiary amine promote the reaction by reacting with the by-product $HCl$.

Which of the following is not an actinoid?

Which one of the following is an example for homogeneous catalysis?

Which is a bactericidal antibiotic?

Which halogen forms only one oxoacid (HOX)?

Which cell will measure standard electrode potential of copper electrode?

When $CO_2$ is passed through solution of sodium aluminate, precipitate of which compound is formed?

What is the oxidation number of $Br$ in $KBrO_4$ ?

What is ????in the following reaction?

Three charged particles are collinear and are in equilibrium, then

The period number in the long form of the periodic table is equal to

The $KE$ of the electron in an orbit of radius $r$ in hydrogen atom is ($e$ = electronic charge)

The entropy change involved in the isothermal reversible expansion of $2$ moles of an ideal gas from a volume of $10\, dm ^{3}$ at $27^{\circ} C$ is to a volume of $100\, dm ^{3}$

Strongest conjugate base is

Rhombic sulphur dissolves best in

Purification of colloids is done by

Monomers of nylon 2-nylon 6 ar

Maltose is made of the units

$KMnO_4$ in alkaline medium changes to

In presence of acidic medium, $KMnO_4$ converts $H_2S$ into

In O molecule, the formal charge on the central O-atom is

In electrorefining of copper some gold is deposited at

In Clemmensen reduction, carbonyl compound is treated with

$\left[ Ni ( CO )_{4}\right]$ is a diamagnetic complex. All the electrons in the complex are paired.