List of top Chemistry Questions asked in NEET (UG)

The electronic configuration of Cu (at.no. = 29) is
Pure nitrogen is prepared in the laboratory by heating a mixture of
$PH_4I + NaOH$ forms
On hydrolysis of starch, we finally get
The transition elements have a general electronic configuration.
Oleum is
The relative lowering of the vapour pressure is equal to the ratio between the number of
In a closed flask of 5 L, 1.0 g of $H_2$ is heated from 300 to 600 K. Which statement is not correct?
In compound ' X - all the bond angles are exactly 109$^{\circ}$28', 'X - is
The tendency of \(BF_3, BCI_3 \, and \, BBr_3\) behave as Lewis acid decreases in the sequence
Which one shows maximum hydrogen bonding?
In van der Waals equation of state for a non-ideal gas, the term that accounts for inter molecular forces is
The reagents which can be used to distinguish acetophenone from benzophenone is (are)
An ion has 18 electrons in the outermost shell, it is
The number of gram molecules of oxygen in $6.02 \times 10^{24}$ CO molecules is
The complex ion $[Co(NH_3)_6]^{3+}$ is formed by $sp^3d^2$ hybridisation. Hence, the ion should possess
The molecular weight of $O_2$ and $SO_2$ are 32 and 64 respectively. At $15^{\circ}C$ and 150 mmHg pressure, 1L of $O_2$ contains -N - molecules. The number of molecules in 2L of $SO_2$ under the same conditions of temperature and pressure will be
Among $LiCl, BeCl_2, BCl_3 $and $CCl_4$ , the covalent bond character follows the order
If $\Delta H$ is the change in enthalpy and $\Delta E$, the change in internal energy accompanying a gaseous reaction, then
Linear combination of two hybridised orbitals belonging to the two atoms, each having one electron leads to a
Absolute zero is defined as the temperature
Which statement is not correct?
An organic compound X(molecular formula C6H7O2N) has six carbon atoms in a ring system, two double bonds and a nitro group as substituent, X is
Root mean square velocity of a gas molecule is proportional to
Boron has two stable isotopes, $^{10}B (19 \%)$ and $ ^{11}B (81\%)$. Calculate average atomic weight of boron in the periodic table.