Understanding the basics of acids, bases, and salts is essential for students, particularly in Class 7, as it forms the foundation of chemistry. These substances play a crucial role in everyday life, from the sour taste of lemon juice to the bitter taste of baking soda.
Our collection of 50 General Knowledge questions on acids, bases, and salts Class 7 for students aims to enhance their understanding and curiosity about these chemical compounds. Each GK questions is designed to be concise, with one-word answers, making it easier for students to grasp and retain key concepts. Dive in to test your knowledge and learn more about the fascinating world of chemistry
50 GK Questions and Answer on Acid Bases and Salts Class 7
Q. What is the taste of acids?
Answer: Sour
Q. What is the taste of bases?
Answer: Bitter
Q. What color does litmus paper turn in acids?
Answer: Red
Q. What color does litmus paper turn in bases?
Answer: Blue
Q. What is the pH range of acids?
Answer: 0-7
Q. What is the pH range of bases?
Answer: 7-14
Q. What is the pH of a neutral solution?
Answer: 7
Q. What gas is produced when acids react with metals?
Answer: Hydrogen
Q. What type of substance is NaOH?
Answer: Base
Q. What type of substance is HCl?
Answer: Acid
Q. What substance is commonly used to neutralize stomach acid?
Answer: Antacid
Also Check: GK Question on Science
Q. What ion do acids release in water?
Answer: Hydrogen
Q. What ion do bases release in water?
Answer: Hydroxide
Q. What is the common name for sodium chloride?
Answer: Salt
Q. What color does phenolphthalein turn in a base?
Answer: Pink
Q. What color does phenolphthalein remain in an acid?
Answer: Colorless
Q. What is the chemical formula for water?
Answer: H2O
Q. What is the common use of acetic acid?
Answer: Vinegar
Q. What type of reaction occurs when an acid and base react?
Answer: Neutralization
Q. What is produced in a neutralization reaction besides water?
Answer: Salt
Q. What is the chemical formula for sulfuric acid?
Answer: H2SO4
Q. What is the chemical formula for calcium hydroxide?
Answer: Ca(OH)2
Q. What is the common name for calcium carbonate?
Answer: Chalk
Q. What is the effect of acids on blue litmus paper?
Answer: Red
Q. What is the effect of bases on red litmus paper?
Answer: Blue
Q. What substance is used to test for carbon dioxide?
Answer: Limewater
Q. What gas is released when acids react with carbonates?
Answer: Carbon dioxide
Q. What is the main component of gastric acid?
Answer: HCl
Q. What is the chemical name for baking soda?
Answer: Sodium bicarbonate
Q. What is the common use of magnesium hydroxide?
Answer: Antacid
Q. What is the chemical formula for hydrochloric acid?
Answer: HCl
Q. What is the common name for sodium hydroxide?
Answer: Lye
Q. What is the effect of acidic soil on plants?
Answer: Harmful
Q. What type of acid is found in citrus fruits?
Answer: Citric
Q. What substance is used to clean swimming pools?
Answer: Chlorine
Q. What is the taste of baking soda?
Answer: Bitter
Q. What color does turmeric turn in a base?
Answer: Red
Q. What acid is used in car batteries?
Answer: Sulfuric
Q. What base is used in soap making?
Answer: Sodium hydroxide
Q. What is the effect of bases on turmeric paper?
Answer: Red
Q. What type of acid is found in vinegar?
Answer: Acetic
Q. What gas is produced when acids react with bicarbonates?
Answer: Carbon dioxide
Q. What is the common name for H2SO4?
Answer: Sulfuric acid
Q. What is a common use for citric acid?
Answer: Preservative
Q. What is the pH of pure water?
Answer: 7
Q. What is the chemical formula for sodium chloride?
Answer: NaCl
Q. What type of substance is KOH?
Answer: Base
Q. What ion is common in all acids?
Answer: Hydrogen
Q. What ion is common in all bases?
Answer: Hydroxide
Q. What is the effect of acidic solutions on methyl orange?
Answer: Red
