JEE & NEETNEET Chemistry NEET Chemistry MCQ 100+ MCQ & Answer | Page-01 February 4, 2025 DSN MARATHI 01. Which of the following is used as an indicator in the titration of a strong acid and a weak base? A. Methyl orange B. Phenolphthalein C. Thymol blue D. Fluorescein Answer Option : 02. The ideal indicator for the titration of strong acid and weak base should have pH range between ______. A. 3-5 B. 4-6 C. 6-8 D. 7-9 Answer Option : B 03. Find the concentration of HCl, if 10 ml of 0.5 M Ca(OH)2 is required to titrate 50 ml of HCl. A. 1/10 M B. 1/5 M C. 5 M D. 10 M Answer Option : B 04. What is the concentration of the sulphuric acid solution, if 100 ml of the solution is neutralised by 50 ml of 0.5 M Ba(OH)2 solution? A. 0.25 M B. 0.5 M C. 25 M D. 50 m Answer Option : A 05. If 30 ml of acid is neutralised by 15 ml of 0.2 N alkali, then the concentration of acid is ______. A. 0.1 N B. 0.2 N C. 0.3 N D. 0.4 N Answer Option : A 06. Which of the following is used as an indicator in the titration of a weak acid and a strong base? A. Methyl orange (3 to 4.6) B. Bromothymol blue (6 to 7.5) C. Phenolphthalein (8 to 9.6) D. Methyl red (5 to 6.9) Answer Option : C 07. What is the molarity of the solution of barium hydroxide, if 35 ml of 0.1 M HCl is used in the titration of 25 ml of the barium hydroxide solution? A. 0.28 B. 0.21 C. 0.14 D. 0.07 Answer Option : D 08. A difference between strong and weak acid is ________. A. proton donation and electron acceptance B. complete and partial ionisation C. negative and positive pH D. presence and absence of halogen ions Answer Option : A 09. Paraffin wax is A. Ester B. Alcohol C. Saturated hydrocarbons D. Unsaturated hydrocarbons Answer Option : A 10. The bond angle between H-C-C bonds in ethane is _______. A. 105.5° B. 109.5° C. 180° D. 100.9° Answer Option : B
01. Which of the following is used as an indicator in the titration of a strong acid and a weak base? A. Methyl orange B. Phenolphthalein C. Thymol blue D. Fluorescein Answer Option :
02. The ideal indicator for the titration of strong acid and weak base should have pH range between ______. A. 3-5 B. 4-6 C. 6-8 D. 7-9 Answer Option : B
03. Find the concentration of HCl, if 10 ml of 0.5 M Ca(OH)2 is required to titrate 50 ml of HCl. A. 1/10 M B. 1/5 M C. 5 M D. 10 M Answer Option : B
04. What is the concentration of the sulphuric acid solution, if 100 ml of the solution is neutralised by 50 ml of 0.5 M Ba(OH)2 solution? A. 0.25 M B. 0.5 M C. 25 M D. 50 m Answer Option : A
05. If 30 ml of acid is neutralised by 15 ml of 0.2 N alkali, then the concentration of acid is ______. A. 0.1 N B. 0.2 N C. 0.3 N D. 0.4 N Answer Option : A
06. Which of the following is used as an indicator in the titration of a weak acid and a strong base? A. Methyl orange (3 to 4.6) B. Bromothymol blue (6 to 7.5) C. Phenolphthalein (8 to 9.6) D. Methyl red (5 to 6.9) Answer Option : C
07. What is the molarity of the solution of barium hydroxide, if 35 ml of 0.1 M HCl is used in the titration of 25 ml of the barium hydroxide solution? A. 0.28 B. 0.21 C. 0.14 D. 0.07 Answer Option : D
08. A difference between strong and weak acid is ________. A. proton donation and electron acceptance B. complete and partial ionisation C. negative and positive pH D. presence and absence of halogen ions Answer Option : A
09. Paraffin wax is A. Ester B. Alcohol C. Saturated hydrocarbons D. Unsaturated hydrocarbons Answer Option : A
10. The bond angle between H-C-C bonds in ethane is _______. A. 105.5° B. 109.5° C. 180° D. 100.9° Answer Option : B
