List of top Chemistry Questions asked in AIPMT

Which one of the following statement is not true ?

The electrode potentials for $Cu^{2+}(aq)+e^- \rightarrow Cu^+_{(aq)} $ and $Cu^{+}(aq)+e^- \rightarrow Cu_{(s)} $ are $+ 0.15 \,V$ and $+ 0.50\, V$ respectively. The value of $E^0_{Cu^{2+}/Cu} $ will be

Which one of the following is most reactive towards electrophilic reagent?

Which of the following compounds has the lowest melting point ?

What is the value of electron gain enthalpy of $Na^+$ if $IE_1$ of $Na = 5.1 \, eV$?

Which of the following structures represents neoprene polymer?

The tendency of $BF_3, BCl_3$ and $BBr_3$ to behave as Lewis acid decreases in the sequence

The existence of two different coloured complexes with the composition of $[Co(NH_3 )_4Cl_2 ]^+$ is due to

The energy of a hydrogen atom in the ground state is $-13.6\, eV$. The energy of a $He^+$ ion in the first excited state will be

Which one of the following compounds has the most acidic nature?

Which one of the following compounds is a peroxide?

Which one of the following ions has electronic configuration $[Ar] 3d^6 ? $ (At.no. $Mn =25, Fe = 26,Co =27, Ni = 28)$

Which one of the following molecular hydrides acts as a Lewis acid?

Which of the following conformers for ethylene glycol is most stable ?

Given are cyclohexanol (I), acetic acid (II), 2, 4, 6-trinitrophenol (III) and phenol (IV). In these, the order of decreasing acidic character will be

Which one of the following statements is correct?

The straight chain polymer is formed by

The energy absorbed by each molecule $(A_2)$ of a substance is $4.4\times 10^{-19} J$ and bond energy per molecule is $4.0\times 10^{-19} J$The kinetic energy of the molecule per atom will be

Oxidation numbers of P in $PO_4^{ 3 - } $, of $S$ in $SO_4^{2 - }$ and that of $ Cr$ in $Cr_2 O_7^{ 2 - } $ respectively are

Lithium metal crystallizes in a body centred cubic crystal. If the length of the side of the unit cell of lithium is $351\, pm,$ the atomic radius of the lithium will be

The sequence of ionic mobility in aqueous solution is

Percentage of free space in body centred cubic (bcc) unit cell is

Which one of the following is most reactive towards electrophilic attack ?

Acetophenone when reacted with a base , $C_2 H_5 ONa,$ yields a stable compound which has the structure . The state of hybridisation of S in $SO_2$ is similar to that of

The fraction of total volume occupied by the atoms present in a simple cube is