List of top Chemistry Questions asked in NEET (UG)

During dialysis
The momentum of a particle having a de-Broglie wavelength of $10^{17}$ m is (Given, $h = 6.625 \times 10^{-34}$ m)
Nylon-66 is a polyamide obtained by the reaction of
An element (atomic mass $100 \,g /\, mol$ ) having $BCC$ structure has unit cell edge $400\, pm$. The density of element is (No. of atom in $BCC ( Z )=2$ ).
Commonly used antiseptic -Dettol- is a mixture of
Which of the following has zero dipole moment?
Which of the following bonds has the highest energy?
Boron compounds behave as Lewis acids, because of their
Which of the following is the correct equation?
What will be the longest wavelength line in Balmer series of spectrum?
Uncertainty in position of an electron (mass of an electron is =$9.1\times10^{-28}g)$ moving with a velocity of $3 \times 10 ^4$ cm/s accurate upto 0.001% will be (use $\frac{h}{4\pi}$ in uncertainty expression where $h = 6.626 \times 10^{-27}$ erg s)
On heating one end of a piece of a metal, the other end becomes hot because of
The number of possible isomers of the compound with molecular formula $C_7H_8 O$ is
The normal boiling point of water is 373 K(at 760 mm). Vapour pressure of water at 298 K is 23 mm. If enthalpy of vaporisation is 40.656 kJ the boiling point of water at 23 mm atmospheric pressure will be
The $ BCl_3$ is a planar molecule whereas $NCl_3$ is pyramidal because
The concentration units independent of temperature would be
The correct order of the $O - O$ bond length in $O_2,H_2 O_2 $ and $O_3 $ is
If enthalpies of formation for $C _{2} H _{4}(g), CO _{2( g )}$ and $H _{2} O _{(1)}$ at $25^{\circ} C$ and $1\, atm$ pressure are $52,-394$ and - $286\, kJ / mol$ respectively, then enthalpy of combustion of $C _{2} H _{4}( g )$ will be
The percentage weight of Zn in white vitriol $[ZnSO_4 . 7H_2O]$ is approximately equal to $(at. \, mass\, of \, Zn= 65, S=32, 0=16 \, and \, H= 1)$
Stainless steel contains iron and
The loss of electron is termed as
The number of geometrical isomers for [Pt(NH3)2Cl2] is
The oxidation number of chromium in potassium dichromate is
The number of moles of oxygen in 1 L of air containing 21% oxygen by volume, under standard conditions, is
The radius of hydrogen atom in the ground state is 0.53 $\mathring{A}.$ The radius of $Li^{2+}$ ion (at. no. = 3) in a similar state is