23. Which of the following is the weakest acid? 1. HCI 2. HCIO 3. HCIO2 4. HCIO

Question

23. Which of the following is the weakest acid? 1. HCI 2. HCIO 3. HCIO2 4. HCIO 5. HCiO 24 Whic of hefrlowing saement bout slfiurc aeid s abe? 1 .It is a strong acid. 2. Its conjugate base is HSO4 3. Its conjugate base is a strong base 4. It is a stronger acid than H,SO 5. It is an acid according to Arrhenius Theory 25. Which of these common substances is not acidic? 4. human blood 5. car bate 1. vinegar solution 26. Which of these common substances is not basic? 1. Drano 2. soap 3. Clorox 27. Which one of the following is a property of acids? 4. lemon juice 5. oven cleaner 1. They have a bitter taste. 2. They react with bases to form salts. 3. They react with hydrogen to form water 4. They react with all compounds 5. None of the above

Explanation / Answer

23. HCl is a very strong acid when compared to HClO because of its size and electronegativity. And as the oxidation states increases those acids become more strong so HClO is weakest compared to HClO2 or HClO3 or HClO3. The answer is option 2.

24. The answer is 3. Sulphuric acids conjugate base HSO4- is not a strong base rather it's a weak acid as it can lose its hydrogen easily.

25. Answer is 2. drano. Drank is a drain cleaner and is basically a base made up of sodium hydroxide and sodium hypochlorite.

26. Answer is option 4 lemon juice. Lemon juice has low pH and is acidic and not basic.

27. Answer is option 2. Acids react with bases to form salts. Bases have bitter taste while acids have sour taste.

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