Acids, Basas, & Salts MCQs – Chapter 5 DAE 20 min Score: 0 Attempted: 0/20 Subscribe 1. The bases give………. ions in water (A) OH− (B) H+ (C) H− (D) H3O+Show All Answers 2. Which one is a Lewis acid? (A) F− (B) OH− (C) BF3 (D) NH3Show All Answers 3. Which one is a Lewis base? (A) H3O+ (B) NH3 (C) BF3 (D) AlCl3Show All Answers 4. The process in which base reacts with oil and form soap is called……? (A) Halogenation (B) Neutralization (C) Saponification (D) OxidationShow All Answers 5. The basicity of CH3COOH is…..? (A) 1 (B) 2 (C) 3 (D) 4Show All Answers 6. The acidity of sodium hydro oxide is….. (A) 1 (B) 2 (C) 3 (D) 4Show All Answers 7. Which one is alkali? (A) KOH (B) Cu(OH)2 (C) Al(OH)3 (D) Ba(OH)2Show All Answers 8. Alum is an example of…. (A) Double (B) Complex (C) Acidic (D) BasicShow All Answers 9. The pH of pure water is…. (A) 4 (B) 0 (C) 7 (D) 14Show All Answers 10. The solution having pH six is called… (A) strong acid (B) Weak acid (C) strong base (D) weak baseShow All Answers 11. pH is equal to….. (A) +log[OH−] (B) log[OH−] (C) +log[H+] (D) log [H+]Show All Answers 12. The number of ionizable hydrogen atoms present in a acid molecule is called it’s…… (A) Allotropy (B) Basicity (C) Acidity (D) RadioactivityShow All Answers 13. According to Lewis concept, an acid……. (A) Accept pair of electron (B) Donate pair of electron (C) Accept pair of proton (D) Donate pair of protonShow All Answers 14. KH2PO4 is ……salt. (A) Acidic (B) Basic (C) Neutral (D) DoubleShow All Answers 15. The pH range of a basic solution is (A) 1 to 4 (B) 8 to 14 (C) 0 to 7 (D) 5 to 6Show All Answers 16. How many water molecules are in the crystal of copper sulphate molecule (CuSO4). (A) 5 (B) 12 (C) 6 (D) 7Show All Answers 17. The nature of solution having pH more than seven will be ………… (A) Neutral (B) Basic (C) Acidic (D) AmphotericShow All Answers 18. Which one is a double salt? (A) K2SO4·Al2(SO4)3 (B) Na2CO3·10H2O (C) Na2SO4 (D) CuSO4·5H2OShow All Answers 19. What will be the effect of mixing more water in acidic solution…… (A) pH will increase (B) pH will decrease (C) pH will remain constant (D) pH will become 14Show All Answers 20. Which one has slippery touch? (A) Acid (B) Salt (C) Base (D) Double saltShow All Answers
