1st Year Chemistry Chapter 13 TestHalogens

Q1. Multiple choice questions (Attempt all · 10 × 1 = 10)

1. AgNO₃ forms a precipitate with a halide ion due to formation of:

   1. Ionic bonds

   2. Complex compounds

   3. Silver halide salts

   4. Covalent halide radicals

2. Halide ion that reacts with concentrated H₂SO₄ to release HCl gas?

   1. Br^-

   2. Cl^-

   3. l^-

   4. F^-

3. Which silver halide dissolves only in concentrated ammonia?

   1. AgCl

   2. AgBr

   3. Agl

   4. AgF

4. Which of the following reactions is reversible?

   1. 

   2. 

   3. 

   4. 

5. Which of the following halide ions does not cause the release of brown vapors when treated with concentrated H₂SO₄?

   1. Br^-

   2. I^-

   3. Cl^-

   4. None

6. Which halogen has the lowest tendency to gain electrons?

   1. F₂

   2. Cl₂

   3. Br₂

   4. I₂

7. How does the acidic strength of hydrogen halides change as you move down the group?

   1. It remains constant

   2. It decreases from HF to HI

   3. It increases from HF to HI

   4. It fluctuates erratically

8. The halogen that reacts explosively with hydrogen at room temperatureis:

   1. Iodine

   2. Bromine

   3. Chlorine

   4. Fluorine

9. Which factor decreases from HF to HI?

   1. Electronegativity of halogen

   2. Bond length

   3. Bond strength

   4. Reactivity with metals

10. The product formed when chlorine reacts with cold, dilute NaOH is:

    1. NaCIO₄

    2. NaCIO

    3. NaCIO₃

    4. NaCIO₂