JEE & NEETNEET Chemistry NEET Chemistry MCQ 100+ MCQ & Answer | Page-10 February 4, 2025 DSN MARATHI 91. The buffer region is represented by _______. A. the concave curve after adding titrant B. the flat curve after the equivalence point C. the flat curve before the equivalence point D. the steep curve after the equivalence point Answer Option : C 92. Which of the following represents the equivalence point in the graph of pH Vs volume of titrant? A. Point at the highest pH B. Point at the lowest pH C. Point at the least magnitude of the slope of the curve D. Point at the greatest magnitude of the slope of the curve Answer Option : D 93. The pH range of methyl orange as an indicator is _______. A. 2-4 B. 3-5 C. 6-8 D. 8-9 Answer Option : B 94. Which of the following is used as an indicator in the titration of iodine with hypo? A. Starch B. Methyl red C. Methyl orange D. Potassium ferricyanide Answer Option : A 95. The amount of NaOH used in the titration of 100 ml 0.1 N HCl is _______. A. 2 g B. 4 g C. 0.4 g D. 0.04 g Answer Option : C 96. What will be the pH at the equivalence point in the titration of a weak acid and a strong base? A. 0 B. 7 C. >7 D. <7 Answer Option : C 97. The equivalent weight of an acid can be calculated by _______. A. Molecular weight × basicity B. Molecular weight/basicity C. Molecular weight × acidity D. Molecular weight/acidity Answer Option : B 98. On adding a large amount of titrant, an asymptote is obtained in the titration curve, this asymptote represents _______. A. pH of the titrant B. pH of the initial solution C. Ka of the initial solution D. None of the above Answer Option : A 99. s-orbitals are nondirectional because of _______. A. spherical symmetry B. their small size C. being first orbital D. All of the above Answer Option : A 100. In which year was the Valence bond theory introduced? A. 1920 B. 1927 C. 1935 D. 1973 Answer Option : B
91. The buffer region is represented by _______. A. the concave curve after adding titrant B. the flat curve after the equivalence point C. the flat curve before the equivalence point D. the steep curve after the equivalence point Answer Option : C
92. Which of the following represents the equivalence point in the graph of pH Vs volume of titrant? A. Point at the highest pH B. Point at the lowest pH C. Point at the least magnitude of the slope of the curve D. Point at the greatest magnitude of the slope of the curve Answer Option : D
93. The pH range of methyl orange as an indicator is _______. A. 2-4 B. 3-5 C. 6-8 D. 8-9 Answer Option : B
94. Which of the following is used as an indicator in the titration of iodine with hypo? A. Starch B. Methyl red C. Methyl orange D. Potassium ferricyanide Answer Option : A
95. The amount of NaOH used in the titration of 100 ml 0.1 N HCl is _______. A. 2 g B. 4 g C. 0.4 g D. 0.04 g Answer Option : C
96. What will be the pH at the equivalence point in the titration of a weak acid and a strong base? A. 0 B. 7 C. >7 D. <7 Answer Option : C
97. The equivalent weight of an acid can be calculated by _______. A. Molecular weight × basicity B. Molecular weight/basicity C. Molecular weight × acidity D. Molecular weight/acidity Answer Option : B
98. On adding a large amount of titrant, an asymptote is obtained in the titration curve, this asymptote represents _______. A. pH of the titrant B. pH of the initial solution C. Ka of the initial solution D. None of the above Answer Option : A
99. s-orbitals are nondirectional because of _______. A. spherical symmetry B. their small size C. being first orbital D. All of the above Answer Option : A
100. In which year was the Valence bond theory introduced? A. 1920 B. 1927 C. 1935 D. 1973 Answer Option : B
