List of top Chemistry Questions asked in NEET (UG)

Ketones [RCOR1] where $R=R_1 =$ alkyl group, can be obtained in one step by
The structural formula of hypophosphorous acid is
The element with the atomic number 118, will be
Elemental silicon to be used as a semiconductor is purified by
The plot of concentration of the reactant versus time for a reaction is a straight line with a negative slope. This reaction follows
In a reversible reaction, the energy of activation of the forward reaction is 50 kcal. The energy of activation for the reverse reaction will be
The structure and hybridisation of $Si(CH_3)_4$ is
The momentum of a particle having a de-Broglie wavelength of $10^{17}$ m is (Given, $h = 6.625 \times 10^{-34}$ m)
In reference to biological role, $Ca^{2+}$ ions are important in
Sucrose in water is dextrorotatoiy, $[\alpha]_D$ =+ 66.4$^{\circ}$ when boiled with dil. HCl, the solution becomes leavo rotatory, $[\alpha]_D$ = - 39.9$^{\circ}$. In this process the sucrose breaks into
0.24 g of a volatile gas, upon vaporisation, gives 45 mL vapour at NTP. What will be the vapour density of the substance ? (Density of $ H_2 = 0.089$)
A 5 A current is passed through a solution of zinc sulphate for 40 min. The amount of zinc deposited at the cathode is
Which of the following has zero dipole moment?
The basic character of hydrides of the 15 group elements decreases in the order
The ionic product of water at $25^{\circ} C$ is $10^{-14}$. Its ionic product at $90^{\circ} C$ will be
Among the following oxides, the least acidic is
Commonly used antiseptic -Dettol- is a mixture of
Cyclopropane and oxygen at partial pressures 170 torr and 570 torr are mixed in a gas cylinder. What is the ratio of the number of moles of cyclopropane to the number of moles of oxygen?
During dialysis
The correct order of $ N - O $ bond lengths in $NO, NO_2^-, NO_3^- $ and $ N_2O_4 $ is
The IUPAC name of(CH3)2CH - CH2 - CH2Br is
The IUPAC name of is
The metal which does not form coloured compounds is
The oxidation of toluene to benzaldehyde by chromyl chloride is called
What is the molarity of $H_2SO_4$ solution that has a density of 1.84 g/cc at 35$^\circ$C and contains 98% by weight ?