NEET questions
18092 published questions with worked solutions.
- A parallel beam of fast moving electrons is incident normally on a narrow slit. A fluorescent screen is placed at a large...
- In a n-type semiconductor, which of the following statements is true -Not in JEE Advanced syllabus
- The value of Planck's constant is 6.63 10^ -34 Js. The speed of light is 3 10^ 17 nm s^ -1 . Which value is closest to the...
- What is the maximum numbers of electrons that can be associated with the following set of quantum numbers ? n = 3, l = 1 and m =...
- What is the activation energy for a reaction if its rate doubles when the temperature is raised from 20^ to 35^ ? (R = 8.314 J...
- A hydrogen gas electrode is made by dipping platinum wire in a solution of HCl of pH = 10 and by passing hydrogen gas around the...
- A reaction having equal energies of activation for forward and reverse reactions has -
- At 25^ molar conductance of 0.1 molar aqueous solution of ammonium hydroxide is 9.54 ohm^ -1 cm^2 mol^ -1 and at infinite...
- Based on equation E = -2.178 10^ -18 J ( Z^2 n^2 ), certain conclusions are written. Which of them is not correct ?
- A button cell used in watches functions as following Zn(s) + Ag _2 O(s) + H _2 O(l) 2 Ag(s) + Zn ^ 2+ (aq) + 2 OH ^- (aq) If half...
- How many grams of concentrated nitric acid solution should be used to prepare 250 mL of 2.0 M HNO_3 ? The concentrated acid is 70...
- The number of carbon atoms per unit cell of diamond unit cell is -Not in JEE Main or NEET syllabus
- A metal has a fcc lattice. The edge length of the unit cell is 404 pm. The density of the metal is 2.72 g cm^ -3 . The molar mass...Not in JEE Main or NEET syllabus
- Dipole - induced dipole interactions are present in which of the following pairs :
- A magnetic moment of 1.73 BM will be shown by one among the following -
- Which of the following is paramagnetic ?
- Which of the following lanthanoid ions is diamagnetic ? (At. No. Ce = 58, Sm = 62, Eu = 63, Yb = 70)
- Identify the correct order of solubility in aqueous medium -
- XeF _2 is isostructural with -
- An excess of AgNO _3 is added to 100 mL of a 0.01 M solution of dichlorotetraaquachrominum (III) chloride. The number of moles of...