List of top Chemistry Questions asked in NEET (UG)

Reason of lanthanoid contraction is:
If a is the length of the side of a cube , the distance between the body centred atom and one corner atom in the cube will be
Calculate the energy in joule corresponding to light of wavelength 45 nm:
(Planck’s constant h = 6.63 × 10-34 Js; speed of light c = 3 × 108 ms-1)
The weight of silver (at wt. = 108) displaced by a quantity of electricity which displaces 5600 mL of O2 at STP will be:
Among the following complexes the one which shows zero crystal field stabilization energy (CFSE) is:
Which one is most reactive towards Nucleophilic addition reaction?
Which one of the following species has plane triangular shape?
Which of the following molecules has the maximum dipole moment?
Artificial sweetener which is stable under cold conditions only is:
For a given exothermic reaction, Kp and K'P are the equilibrium constants at temperatures T1 and T2, respectively. Assuming that heat of reaction is constant in temperature range between T1 and T2, it is readily observed that:
Which property of colloids isnot dependent on the charge on colloidal particles?
Which of the following statements is correct for the spontaneous adsorption of a gas?
When 0.1 mol MnO42– is oxidised the quantity of electricity required to completely oxidise MnO42– to MnO4– is
In the Kjeldahl's method for estimation of nitrogen present in a soil sample, ammonia evolved from 0.75 gm of sample neutralized 10 mL of 1 M H2SO4, The percentage of nitrogen in the soil is:
Which of the following salts will give highest pH in water ?
Which one of the following is not a commoncomponent of Photochemical Smog?
Which of the following will be most stable diazoniumsalt RN2+X- ?
1.0 g of magnesium is burnt with 0.56 g O2 in a closed vessel. Which reactant is left in excess and how much ?
(At. wt. Mg =24; O=16)
The reaction of aqueous KMnO4 with H2O2 in acidic conditions gives:
In acidic medium, H2O2 changes Cr2O72- to CrO5 which has two (-O-O-) bonds. Oxidation state of Cr in CrO5 is
What products are formed when the following compound is treated with Br2 in the presence of FeBr3?
What products are formed when the following compound is treated with Br2
Which of the following orders of ionic radii is correctly represented?
Which of the following organic compoundspolymerizes to form the polyester Dacron?
Which of the following hormones is produced underthe condition of stress which stimulates glycogenolysis in the liver of human beings?
Which of the following compounds will undergo racemisation when solution of KOH hydrolysis?
Which of the following compounds will undergo racemisation when solution of KOH hydrolysis?