Engineering Questions

Q.57. One mole each of He and A(g) are taken in a 10 L closed flask and heated to 400 K to establish the following equilibrium. A(g) B(g) K for this reaction at 400 K is 4.0. The partial pressures (i

Q.66. Given below are some of the statements about Mn and Mn₂O₇. Identify the correct statements A. Mn forms the oxide Mn₂O₇ in which Mn is in its highest oxidation state. B. Oxygen stabilizes the Mn

Q.38. A thin half ring of radius 35 cm is uniformly charged with a total charge of Q coulomb. If the magnitude of the electric field at centre of the half ring is 100 V/m, then the value of Q is ____

Q.58. Decomposition of A is a first order reaction at T(K) and is given by A(g) → B(g) + C(g). In a closed 1 L vessel, 1 bar A(g) is allowed to decompose at T(K). After 100 minutes, the total pressure

Q.7. A building has ground floor and 10 more floors. Nine persons enter in a lift at the ground floor. The lift goes up to the 10th floor. The number of ways, in which any 4 persons exit at a floor an

Q.59. Given below are two statements : Statement-I : Aluminium upon reaction with NaOH forms [Al(OH)₄]⁻ ion. Statement-II : The geometry of ICl₂, ClO₃⁻ and IBr₂⁻ is square planar, pyramidal and linear

Q.7. The first term of an A.P. of 30 non-negative terms is . If the sum of this A.P. is the cube of its last term, then its common difference is :

Q.46. Refer to the circuit diagram given below. The heat generated across the 6 resistance in 100 second is J. The value of is ________ (Nearest integer)

Q.12. Let be a directrix of an ellipse E, whose centre is at the origin and eccentricity is . Let , , be a focus of E and AB be a chord passing through P. Then the locus of the mid point of AB is :

Q.32. A smooth inclined plane ends in a vertical circular loop, as shown in the figure. A small body is released from height as shown. If the body exerts a force of three times its weight on the plan