Practice/Question bank/JEE Main

JEE Main practice questions

NTA-style Physics, Chemistry and Maths MCQs with solutions. 2,688 questions in the bank.

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  1. 1An aqueous solution contains ${Hg}^{2 +},{Hg}_{2}^{2 +},{Pb}^{2 +}{Ag}^{+},{Bi}^{3 +}$ and ${Cd}^{2 +}$. Out of these, how many ions will…Chemistry· Inorganic Chemistry· Moderate
  2. 2The most reactive chlorine towards $H_{2}O$ isChemistry· Organic Chemistry· Moderate· figure
  3. 3How many of the following may produce salicylic acid on hydrolysis under appropriate conditions ? (i) [IMAGE] (ii)Chemistry· Organic Chemistry· Tough· figure
  4. 4How many N atom are present in final product [IMAGE] Final product.Chemistry· Organic Chemistry· Tough· figure
  5. 5The enthalpies of neutralization of a weak base AOH and a strong base BOH by HCI are -12250 mol respectively. When one mole of HCI is added…Chemistry· Physical Chemistry· Easy
  6. 6The equilibrium constant at 298 K for a reaction $A + B \rightleftharpoons C + D$ is 100. If the initial concentration of all the four…Chemistry· Physical Chemistry· Moderate
  7. 7The correct order of electronegativity on Pauling scale isChemistry· Inorganic Chemistry· Easy
  8. 8Which one of the following is an amphoteric oxide?Chemistry· Inorganic Chemistry· Moderate
  9. 9Which of the following contains both electrovalent and covalent bonds ?Chemistry· Inorganic Chemistry· Moderate· figure
  10. 10Select the correct statement with respect to alkali metals.Chemistry· Inorganic Chemistry· Easy
  11. 11Aluminium is extracted by the electrolysis ofChemistry· Inorganic Chemistry· Moderate
  12. 12Let f(x) = sgn (x2 - 4 | x | + k). If f(x) is discontinuous at exactly four points, then the range of k isMathematics· figure
  13. 13If the locus of the centre of the variable circle which intersects the circles x2 + y2 = 4 and x2 + y2 + 2x + 4y = 6 orthogonally has the…Mathematics· figure
  14. 14Let y2x [IMAGE] - x + 1 = 0. If yMathematics· figure
  15. 15Number of critical points of the function, f(x) = [IMAGE] dt which lie in the interval [− 2π, 2π] isMathematics· figure
  16. 16If the mean deviation of numbers 1, 1 + k, 1 + 2k, 1 + 3k,............, 1 + 100k (k > 0) about their mean is 255, then k is equal toMathematics· figure
  17. 17If the roots of the quadratic equation x2 + 6x + b = 0 are real and distinct and they differ by atmost 4 then the range of values of b isMathematics
  18. 18The value of expression: tan-1[IMAGE] +Mathematics· figure
  19. 19If | Z - i | ≤ 2 and Z1 = 5 + 3i, then the maximum value of | iZ + Z1 | isMathematics· figure
  20. 20Let the line L1: [IMAGE] and L2: [IMAGE] intersect at P. The least distance of P from the plane 3x - 4y - 12z + 4 = 0, equalsMathematics· figure
  21. 21A common tangent to the conics x2 = 6y and 2x2 - 4y2 = 9, isMathematics· figure
  22. 22A student guesses of each of 30 true/false questions. The chance that he gets at least 15 correct, isMathematics· figure
  23. 23The number of points of local maximum and local minimum of the function [IMAGE] are respectivelyMathematics· figure
  24. 24has four choicesMathematics
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