Engineering Questions
409 solved questions with detailed explanations
Q.62. Given below are two statements : Statement I: Vapours of the liquid with higher boiling point condense before vapours of the liquid with lower boiling points in fractional distillation. Statemen
Q.42. An unpolarized light of certain intensity passes through a combination of two polarizers whose transmission axes are at and , respectively, with respect to the horizontal axis. A third polarize
Q.71. First and second ionization enthalpies of lithium are 520 kJ mol and 7297 kJ mol respectively. Energy required to convert 3.5 mg lithium (g) into Li(g) [Li(g) Li(g)] is ______ kJ mol. (nearest
Q.30. A lift of mass 1600 kg is supported by thick iron wire. If the maximum stress which the wire can withstand is and its radius is 4 mm, then maximum acceleration the lift can take is ________ . (
Q.13. The shortest distance between the lines and , , is :
Q.72. In an estimation of sulphur by Carius method 0.2g of the substance gave 0.6 g of BaSO₄. The percentage of sulphur in the substance is %. (Given molar mass in g mol⁰ S : 32, BaSO₄ : 231)
Q.44. A body of mass 2 kg is moving along x-direction such that its displacement as function of time is given by , where , and . The work done on the body during the time interval to , is ..........
Q.58. Match List-I with List-II. List-I: Electronic configuration of neutral atom (where n = 2) A. B. C. D. List-II: 1st Ionization Energy (kJ mol⁻¹) I. 2080 II. 899 III. 800 IV. 1402 Choose the c
Q.35. One mole of diatomic gas having rotational modes only is kept is a cylinder with a piston system. The cross-section area of the cylinder is 4 cm². The gas is heated slowly to raise the temperatu
Q.53. Consider the above sequence of reactions. The number of bromine atom(s) in the final product (P) will be: [Figure: A reaction scheme starting with nitrobenzene. 1. Br/FeBr/A (bromination of nitr