Engineering Questions — Chemistry — JEE Main
145 solved questions with detailed explanations
Q.52. The species having identical radii according to the Bohr's theory are : A. H (first orbit) B. He (first orbit) C. He (second orbit) D. Li (first orbit) E. Be (Second orbit) Choose the correct an
Q.54. Which of the following are not correct? A. For water, magnitude of is more than the magnitude of . B. The elevation in boiling point of water when a non-volatile solute is added to it is larger
Q.70. Match the List-I with List-II List-I: Amino acid (A) Glutamine (B) Lysine (C) Tyrosine (D) Serine List-II: Positive reaction/Test for functional group present in side chain of amino acid I. Hins
Q.63. The major product of which of the following reaction is not obtained by rearrangement reaction? [Figure: Four reaction schemes with reactants and products]
Q.54. Aqueous HCl reacts with MnO(s) to form MnCl(aq), Cl(g) and HO(l). What is the weight (in g) of Cl liberated when 8.7 g of MnO(s) is reacted with excess aqueous HCl solution ? (Given Molar mass i
Q.68. Identify the incorrect statement about tertiary structure of proteins.
Q.72. The osmotic pressure of a living cell in 12 atm at 300 K. The strength of sodium chloride solution that is isotonic with the living cell at this temperature is g L⁻¹. (Nearest integer) (Given :
Q.53. Match the List-I with List-II : List-I (Orbital) | List-II (Radial nodes and nodal plane) A. 2s | I. 1 Radial node + two nodal planes B. 3s | II. 1 Radial node + one nodal plane C. 3p | III. 2 R
Q.72. For the following reaction at 50°C and 2 atm pressure, 2N₂O₃ (g) ⇌ 2N₂O₄(g) + O₂(g) N₂O₃ is 50% dissociated The magnitude of standard free energy change at this temperature is x. x = ______ J mo
Q.69. Identify the correct statements A. Glucose exist in two anomeric forms. B. Anomers of glucose differ in configuration at C-1 in cyclic hemiacetal structure. C. Melting point of a-anomer of gluco