JEE Main questions
34495 published questions with worked solutions.
- Consider the reaction X_2Y(g) X_2(g) + 1 2 Y_2(g) The equation representing correct relationship between the degree of...
- Given below are two statements: Statement (I): The boiling points of alcohols and phenols increase with increase in the number of...
- Given below are two statements: Statement (I) : For a given shell, the total number of allowed orbitals is given by n². Statement...
- Match List-I with List-II. List - I: (A) Bronze (B) Brass (C) UK silver coin (D) Stainless Steel List - II: (I) Cu, Ni (II) Fe,...
- Identify the coordination complexes in which the central metal ion has d^4 configuration. (A) [FeO₄]²⁻ (B) [Mn(CN)₆]³⁻ (C)...
- Given below are the atomic numbers of some group 14 elements. The atomic number of the element with lowest melting point is :
- pH of water is 7 at 25°C. If water is heated to 80°C, it's pH will :
- Consider a binary solution of two volatile liquid components 1 and 2, x_1 and y_1 are the mole fractions of component 1 in liquid...
- 0.01 mole of an organic compound (X) containing 10% hydrogen, on complete combustion produced 0.9 g H₂O. Molar mass of (X) is...
- When 81.0 g of aluminium is allowed to react with 128.0 g of oxygen gas, the mass of aluminium oxide produced in grams is _____....
- The bond dissociation enthalpy of X_2 H^ _ bond calculated from the given data is _____ kJ mol^ -1 . (Nearest integer) M^+X^-(s)...
- A compound 'X' absorbs 2 moles of hydrogen and 'X' upon oxidation with KMnO_4|H^+ gives CH_3–CO–CH_3, CH_3–CO–OH and...
- The value of _ e^2 ^ e^4 1 x ( e^ (( _e x)^2+1)^ -1 e^ (( _e x)^2+1)^ -1 +e^ ((6- _e x)^2+1)^ -1 )dx is-
- Let I(x) = dx (x-11)^ 11/13 (x+15)^ 15/13 . If I(37) - I(24) = 1 4 ( 1 b^ 1/13 - 1 c^ 1/13 ), b, c N, then 3(b+c) is equal to-
- If the function f(x) = cases 2 x (k_1+1)x + (k_2-1)x , & x < 0 4, & x=0 2 x _e ( 2+k_1x 2+k_2x ), & x>0 cases is continuous at x...
- If the line 3x – 2y + 12 = 0 intersects the parabola 4y = 3x^2 at the points A and B, then at the vertex of the parabola, the...
- Let a curve y = f(x) pass through the points (0, 5) and ( _e2, k). If the curve satisfies the differential equation 2(3+y)e^ 2x...
- Let f(x) = _ex and g(x) = x^4-2x^3+3x^2-2x+2 2x^2-2x+1 . Then the domain of fog is-
- If the first term of an A.P. is 3 and the sum of its first four terms is equal to one-fifth of the sum of the next four terms,...
- Let | z -i 2 z +i | = 1 3 , Z ∈ C, be the equation of a circle with center at C. If the area of the triangle, whose vertices are...