This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Science Chapter 4 Acids – Quiz 21 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 4 Acids Quiz 21 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Metal oxide + acid $\rightarrow$ A) Salt and water. B) Salt and hydrogen. C) Salt, carbon dioxide and water. D) Salt and vinegar. Show Answer Correct Answer: A) Salt and water. 2. Which molecule contains your genetic information stored in your cells? A) ATP. B) ADP. C) NADPH. D) DNA. Show Answer Correct Answer: D) DNA. 3. CaCO$_{3}$ A) Acid. B) Base. C) Salt. D) None of the above. Show Answer Correct Answer: C) Salt. 4. Hydrogen bonds are really a form of A) Hydrophobic charge. B) Electrostatic charge. C) Negative charge. D) Hydrophilic charge. Show Answer Correct Answer: B) Electrostatic charge. 5. An acid is a solution that contains ..... ions dissolved in water. A) Positive. B) Negative. C) All the above. D) None of the above. Show Answer Correct Answer: A) Positive. 6. Manure is added, when the soil is too ..... A) Acidic. B) Basic. C) Neutral. D) None of these. Show Answer Correct Answer: B) Basic. 7. What is the formula for carbonic acid? A) CO$_{3}$. B) H $ _ {2} $ co $ _ {2} $. C) HCO$_{2}$. D) H $ _ {2} $ co $ _ {3} $. Show Answer Correct Answer: D) H $ _ {2} $ co $ _ {3} $. 8. What is the formula for hydrochloric acid? A) HCl. B) HCLO. C) H$_{3}$ClO$_{3}$. D) HCLO $ _ {3} $. Show Answer Correct Answer: A) HCl. 9. The correct formula for hydrobromic acid is A) HCl. B) HBE. C) HBr. D) H$_{2}$Br. Show Answer Correct Answer: C) HBr. 10. Define a Base A) Any compound that increases the number of hydroxide ions when dissolved in water. B) Helium when mixed with Sodium and evaporated into a paper bag. C) The higher notes on a music score. D) Any element that decreases the volume of nitrogen ionic bonds when absorbed by acid. Show Answer Correct Answer: A) Any compound that increases the number of hydroxide ions when dissolved in water. 11. True or FalseAcids turn red in turmeric indicator. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 12. The process of creating RNA using DNA as the template is A) Translation. B) Transcription. C) Translocation. D) Transylvania. Show Answer Correct Answer: B) Transcription. 13. In the following chemical equation, which compound is the base?HCl + NH$_{3 }$$\rightarrow$ NH$_{4}$$^{+ }$+ Cl$^{-}$ A) HCl. B) NH$_{3 }$. C) NH$_{4}$$^{+}$. D) Cl$^{-}$. Show Answer Correct Answer: B) NH$_{3 }$. 14. Which of the following is different from others? A) SO$_{2}$. B) $ _ {2} $ of. C) CuO. D) Cao. Show Answer Correct Answer: A) SO$_{2}$. 15. Which amino acid contain the aromatic ring A) Threonine. B) Tryptophan. C) Tyrosine. D) None of the above. Show Answer Correct Answer: B) Tryptophan. 16. What is the function of DNA? A) Tells you it is a nucleic acid and not a protein. B) Carrier of genetic information. C) Creates proteins. D) Allows things to enter and leave the cell. Show Answer Correct Answer: B) Carrier of genetic information. 17. Use your codon chart to answer the following question:GCG ACU AAA UUUWhat is the sequence of amino acids that will be translated from the mRNA above? A) Alanine-lysine-phenlalanine-alanine-threonine. B) Alanine-phenlalanine-threonine-lysine. C) Alanine-threonine-phenlalanine-lysine. D) Alanine-threonine-lysine-phenlalanine. Show Answer Correct Answer: D) Alanine-threonine-lysine-phenlalanine. 18. Which one of the following is not a neutral substance? A) Glucose. B) Sodium Hydroxide. C) Urea. D) Sugar. Show Answer Correct Answer: B) Sodium Hydroxide. 19. In eukaryotes, DNA is mainly present in A) Nucleus. B) Cytoplasm. C) Ribosome. D) Golgi Complex. Show Answer Correct Answer: A) Nucleus. 20. What is the location in the cell for translation? A) Nucleus. B) Mitochondria. C) Ribosome. D) Chloroplast. Show Answer Correct Answer: C) Ribosome. 21. Methyl Orange is a A) Natural. B) Human-Made. C) Pink. D) Colourless. Show Answer Correct Answer: B) Human-Made. 22. Phenolophalein turns from clear to pink when the pH turns A) Acidic. B) Basic. C) Saline. D) Ionic. Show Answer Correct Answer: B) Basic. 23. Which of the following could be classified as an Arrhenius acid? A) Mg(OH)$_{2}$. B) NaOH. C) HF. D) NaCl. Show Answer Correct Answer: C) HF. 24. Is the carboxyl carbon always carbon number 1? A) Yes. B) No. C) All the above. D) None of the above. Show Answer Correct Answer: A) Yes. 25. Which of the following is NOT an acid? A) HCl. B) CH$_{3}$COOH. C) C$_{2}$H$_{6}$. D) H$_{2}$SO$_{4}$. Show Answer Correct Answer: C) C$_{2}$H$_{6}$. ← PreviousNext →Related QuizzesClass 7 Science Chapter 4 Acids Quiz 1Class 7 Science Chapter 4 Acids Quiz 2Class 7 Science Chapter 4 Acids Quiz 3Class 7 Science Chapter 4 Acids Quiz 4Class 7 Science Chapter 4 Acids Quiz 5Class 7 Science Chapter 4 Acids Quiz 6Class 7 Science Chapter 4 Acids Quiz 7Class 7 Science Chapter 4 Acids Quiz 8Class 7 Science Chapter 4 Acids Quiz 9Class 7 Science Chapter 4 Acids Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books