JMI 11th Science Entrance Paper 2025 Answer Key

46. Baking soda is a mixture of:

a) Sodium carbonate and acetic acid
b) Sodium carbonate and tartaric acid
c) Sodium hydrogen carbonate and tartaric acid
d) Sodium hydrogen carbonate and acetic acid

47. Which one of the following types of medicines is used for treating indigestion:

a) Antibiotic
b) Analgesic
c) Antacid
d) Antiseptic

48. Adding common salt to water will result in:

a) Increase in pH of water
b) Decrease in pH of water
c) No change in pH of water
d) Water gets warm

49. The IUPAC name of the given compound is:
CH₃
CH₃ —–|——CH₃
CH₃

a) 2-methyl butane
b) 2, 2dimethyl butane
c) 2,2-dimethyl propane
d) 2-ethyl, 2-methyl propane

50. Which of the following is used for dissolution of gold

a) Hydrochloric acid
b) Sulphuric acid
c) Nitric acid
d) Acquaragia