List of top Chemistry Questions asked in AIIMS

Arrange the following compounds in increasing order of reactivity towards nucleophilic addition reaction. (I)$C_6H_5COCH_3$ (II) $CH_3 CO-C_2H_5$ (III)$C_6H_5CHO$ (IV) $Cl-CH_2 - CHO$

Electron affinity is positive, when

When acidified $K _{2} Cr _{2} O _{7}$ solution is added to $Sn ^{2+}$ salts, then $Sn ^{2+}$ changes to

The composition of a sample of wustite is $Fe _{0.93} O$. What percentage of the iron is present in the form of Fe (III)?

What would be the expected product of the reaction of propyne with$ Br_{2}/H_{2}O$ if the mechanism of this reaction is analogous to that of propene?

How many $mL$ of $0.125\, M \,Cr ^{3+}$ must be reacted with $12.00 \,mL$ of $0.200\, M\, MnO _{4}^{-}$if the redox products are $CrO _{7}^{2-}$ and $Mn ^{2+}$ ?

The strongest acid among the following is

On commercial scale phenol is obtained from chlorobenzene. The chlorobenzene needed for the purpose is prepared byRaschig?? process. Which one of the following is Raschig?? process?

At $300 \,K , 36\, g$ of glucose present per litre in its solution has an osmotic pressure of $4.98$ bar. If the osmotic pressure of solution is $1.52$ bar at the same temperature, what would be its concentration?

Grignard reagents and organolithium compounds on addition to dry ice separately, followed by hydrolysis gives

According to Hardy schulze law, the flocculating power of an ion increases with

: $p$-chlorobenzoic acid is stronger acid than benzoic acid. : Chlorine has electron donating resonance $(+ R )$ effect.

Which has the highest pH?

EDTA is a hexadentate ligand. Denticity of a ligand is given by number of lone pairs donated to central atom by a ligand.

Which of the following compounds are optically active?

The solubility of a gas in a liquid increases with increase of pressure. The solubility of a gas in a liquid is directly proportional to the pressure of the gas.

The vapour pressure of two liquids $'P'$ and $'Q'$ are $80$ and $60$ torr respectively. The total vapour pressure of solution obtained by mixing $3$ mole of $P$ and $2$ mol of $Q$ would be

For a reaction, $r = k(CH_3COCH_3)^{3/2}$ then unit of rate of reaction and rate constant respectively is

$1\,C$ electricity deposits

$\frac{K_{p}}{K_{c}}$ for following reaction will be $\quad\quad$$CO_{\left(g\right)}+\frac{1}{2}O_{2\left(g\right)}\rightarrow CO_{2\left(g\right)}$

At equilibrium which is correct?

$MnO_3$ in an acidic medium dissociates into

Which is correct example of condensation polymer?

Purple of cassius is a/an

Number of isomers of CH