Fsc Part 2 Chemistry Online Test-Chapter 5 The Halogens and the Noble Gases

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Sr.#	Question	Answer
1	Which raw material is used for preparation of bleaching powder.	A. Cl2 and H2O B. Cl2 and Lime C. Cl2 and HOCl D. HCl and Lime
2	Which one of the following acids acts as oxidizing agent but never a reducing agent.	A. HCIO B. HCIO2 C. HCIO3 D. HCIO4
3	Which one is chlorous acid	A. HCIO B. HCIO₂ C. HCIO₃ D. HCIO₄
4	Which is the strongest acid	A. HCIO B. HCIO₂ C. HCIO₃ D. HCIO₄
5	Which halogen will react spontaneously with Au_(s)to produce Au³⁺	A. Br₂ B. F₂ C. I₂ D. Cl₂
6	An element that has high ionization energy and tends to be chemically inactive would most likely to be	A. an alkali metal B. a transition element C. a noble gas D. a halogen
7	An element that has a high ionization energy and tends to be chemically inactive would most likely to be	A. An alkali metal B. A transition element C. A noble gas D. A halogen
8	Which one of the following has highest melting and boiling points.	A. HF B. HBr C. HCl D. HI
9	Colour of which halogen is not correctly related.	A. F2 --- colourless gas B. Cl2---- greenish yellow gas C. Br2----- Reddish brown liquid D. I2-------- grayish Black solid
10	Which statement is correct about the given reaction. 2NaOH + Cl2 --------------- NaCl + NaCIO + H2O	A. Cl is oxidized and O is reduced B. Cl is reduced and O is oxidized C. Cl is oxidized as well as reduced D. Neither Cl nor oxygen is reduced or oxidized