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Acids Bases and...

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  • Question 1
    1 / -0

    A gas produced in the lab is highly soluble in water. Its colorless solution turns pink when a few drops of phenolphthalein is added to it. What is the nature of the gas?

  • Question 2
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    Statement A : Sulphuric acid is diprotic acid and phosphoric acid is triprotic acid.

    Statement B : Chlor-alkali process is involved in the manufacturing of bleaching powder

  • Question 3
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    What happens when sodium hydroxide reacts with sulphuric acid completely?

  • Question 4
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    Under what soil condition do you think a farmer would spread or treat the soil of his fields with quick lime (CaO) or slaked time (CaCO3) ?

  • Question 5
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    The pH of solution A is 6 and pH of solution B is 8. Which solution has more hydrogen ion concentration?

  • Question 6
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    Match the following with correct response.

    (1) Citric acid (A) Vinegar
    (2) acetic acid (B) tamarind
    (3) Nitric acid (C) mineral acid
    (4) Tartaric acid (D) Lemon

  • Question 7
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    Match the following with correct response.

    (1) Sodium hydroxide (A) Antacid
    (2) Potassium hydroxide (B) Caustic soda
    (3) Calcium hydroxide (C) Curd
    (4) Lactic acid (D) Caustic potash

  • Question 8
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    Match the following with correct response.

    (1) Metal oxides (A) Hydroxyl Ions
    (2) Non-metal oxides (B) Acidic
    (3) Salts   (C) Basic
    (4) Bases (D) Neutral

  • Question 9
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    Match the following with correct response.
    (1) Acidic solution
    (2) Basic Solution
    (3) Neutral Solution
    (4) Highly acidic solution

    (A) pH 8
    (B) pH 1
    (C) pH 7
    (D) pH 5

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