Engineering Questions — Chemistry
170 solved questions with detailed explanations
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
Q.68. Given below are two statements : Statement I: Compound (X), shown below, dissolves in NaHCO₃ solution and has two chiral carbon atoms [Figure: Compound (X)]. Statement II: Compound (Y), shown be
Q.67. Consider the following reaction. [Figure: Reaction scheme starting with a cyclic ketone with an ester group, undergoing reduction with NaBH4/MeOH, then NaOH(aq)/Δ, and finally H3O+.] The major p
Q.57. Given below are two statements:R = 8.314 J K⁻¹ mol⁻¹ and 1 cal = 4.2 JStatement I: When = 12.6 kcal/mol, the room temperature rate constant is doubled by a 10°C increase in temperature (298 K t
Q.61. The correct statements are: A. Activation energy for enzyme catalysed hydrolysis of sucrose is lower than that of acid catalysed hydrolysis. B. During denaturation, secondary and tertiary struct
Q.61. Which of the following sets includes all the species that will change the orange colour of KCrO in acidic medium ?
Q.54. Consider the following data (i) 2Al(s) + 6HCl(aq) AlCl(aq) + 3H(g) + 1200 kJ/mol. (ii) H(g) + Cl(g) 2HCl(g) + 164 kJ/mol. (iii) HCl(g) + aq HCl(aq) + 83 kJ/mol. (iv) AlCl(s) + aq AlCl(aq) +
Q.58. The electronegativity of a group 13 element 'E' is same as that of Ge (on Pauling scale and upto one decimal point). The CORRECT statements about E are A. It can act as a reducing agent. B. It c
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.67. Match List-I with List-II. List-I: Mixture of Compounds A. Diethyl amine + Ethyl amine B. Acetaldehyde + Acetone C. Ethanol + Phenol D. Benzoic acid + Cinnamic acid List-II: Reagent used to dist
Q.69. The incorrect statement from the following with respect to carbohydrates is :
Q.65. n-Butane on monochlorination under photochemical conditions gives an optically active compound "P". “P” on further chlorination gives dichloro compounds. The number of dichloro compounds obtaine