Engineering Questions
409 solved questions with detailed explanations
Q.63. Consider the given graph showing variation of reactant concentration with time. Three different reactions were started with identical initial concentration of reactants. Which of the following s
Q.52. Given below are two statements : Given : Molar mass of C, H, O, Cl are 12, 1, 16 and 35.5 g mol⁻¹, respectively. Statement I : In 30%(w/w) solution of methanol in CCl₄ (at T K), the mole fractio
Q.64. Compound (X) is subjected to the sequence of reactions as shown above. Molar mass of the major product (Y) formed is ______ gmol⁻¹. (Given molar mass in g mol⁻¹ C : 12, H : 1, O : 16) [Figure: R
Q.10. A bag contains coins – fair coins, and one coin with 'Head' on both sides. A coin is selected at random and tossed. If the probability of getting 'Head' is , then is equal to:
Q.35. A uniform disc of radius R and mass M is free to oscillate about the axis A as shown in the figure. For small oscillations the time period is __________. (g is acceleration due to gravity) [Figu
Q.21. Let satisfy for some . Then is equal to ________.
Q.61. Given below are two statements for catalytic properties of transition metals : Statement I: First row transition metals which act as catalyst utilise their 3d electrons only for formation of bon
Q.10. If a straight line drawn through the point of intersection of the lines and , meet the co-ordinate axes at the points P and Q, then the locus of the mid point of PQ is:
Q.18. Let , , be a A. P. and be the minimum value of . Then the value of the integral is:
Q.67. Consider the following sequence of reactions [Figure: Reaction scheme starting with phenol, reacting with (i) Cu/573 K, (ii) H, PhCOOH to give product P]. The major product P is :