JEE Main questions
34495 published questions with worked solutions.
- Consider the hypothetical situation where the azimuthal quantum number, takes values 0, 1, 2, .... n + 1. where n is the...
- The increasing order of the reactivity of the following compounds in nucleophilic addition reaction is : Propanal, Benzaldehyde,...
- The d-electron configuration of [ Ru(en)_3 ] Cl_2 and [ Fe(H_2O)_6 ] Cl_2 , respectively are :
- Match the following drugs with their therapeutic actions : List-I: (i) Ranitidine (ii) Nardil (Phenelzine) (iii) Chloramphenicol...Not in JEE Main or NEET syllabus
- Among the statements (I – IV), the correct ones are : (I) Be has smaller atomic radius compared to Mg. (II) Be has higher...
- The five successive ionization enthalpies of an element are 800, 2427, 3658, 25024 and 32824 kJ mol ^ -1 . The number of valence...
- The strengths of 5.6 volume hydrogen peroxide (of density 1g/mL) in terms of mass percentage and molarity (M), respectively, are...
- For the reaction 2A + 3B + 3 2 C 3P , which statement is correct?
- 6.023 10^ 22 molecules are present in 10 g of substance 'x'. The molarity of a solution containing 5 g of substance 'x' in 2L...
- An acidic solution of dichromate is electrolyzed for 8 minutes using 2A current. As per the following equation Cr_2O_7^ 2-...
- The volume (in mL) of 0.1 N NaOH required to neutralise 10 mL of 0.1 N phosphinic acid is .................... .
- The number of C = O groups present in a tripeptide Asp — Glu — Lys is ..................... .
- If 250 cm ^3 of an aqueous solution containing 0.73 g of a protein A is isotonic with one litre of another aqueous solution...
- Let e_1 and e_2 be the eccentricities of the ellipse, x^2 25 + y^2 b^2 =1 (b < 5) and the hyperbola, x^2 16 - y^2 b^2 =1...
- Let the latus rectum of the parabola y^2=4x be the common chord to the circles C_1 and C_2 each of them having radius 2 5 . Then,...
- If the value of the integral _0^ 1/2 x^2 (1-x^2)^ 3/2 dx is k 6 , then k is equal to -
- Let x_i (1 i 10) be ten observations of a random variable X. If _ i=1 ^ 10 (x_i-p)=3 and _ i=1 ^ 10 (x_i-p)^2=9 where 0 p R, then...
- Let R_1 and R_2 be two relations defined as follows : R_1= (a,b) R^2; a^2+b^2 Q and R_2= (a,b) R^2: a^2+b^2 Q , where Q is the...
- The probability that a randomly chosen 5-digit number is made from exactly two digits is :
- Let p, q, r be three statements such that the truth value of (p q) ( q r) is F. Then the truth values of p, q, r are respectively.Not in JEE syllabus