Download or Preview 2nd Year Chemistry MCQs With Answers Chapter 5 for both
Entry Test and F.Sc Board Exams. Here are Chemistry 12 important
mcqs.
IMPORTANCE OF THESE MCQS
It is tough and difficult task to solve 2nd year chemistry mcqs . Students
must have proper preparation of 2nd year chemistry mcqs for excellent
marks in chemistry 12. All the important mcqs related to chapter 5 of 2nd
year Chemistry are here for you. These questions are taken from past
papers of 2nd year chemistry of all Punjab Board of Pakistan as ;
Bahawalpur Board
D.G.Khan Board
Faisalabad Board
Gujranwala Board
Lahore Board
Multan Board
Rawalpindi Board
Content is created and designed with intense care and diligence.
These questions (MCQs) are top repetitive in previous papers. Each
question has a detailed answer explanation. In this way you learn from
your mistakes
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About This Chapter
Chapter no. 5 "The halogens and the noble gases" of 2nd year chemistry
enables the students to learn and write the electronic configuration and
general characteristics of halogens and peculiar behaviour of fluorine.
Students learn About volatile properties and their oxidizing properties.
Students learn preparation and reaction of bleaching powder and
commercial uses of halogens. Students learn properties of oxides,
fluorides and oxyfluorides of xenon. This "2nd year chemistry mcqs with
answers pdf Chapter 5" covers all important mcqs that are top repetitive
in past papers relevant to above mentioned topics.
👉For Answers of following questions click the show answer button.
1. Which one of the halogen is liquid?
(A) F2
(B) Cl2
(C) Br2
(D) I2
(C) Br2
2. Formula of perchloric acid is:
(A) HClO
(B) HClO2
(C) HClO3
(D) HClO4
(D) HClO4
3. Which halogen occurs naturally in a positive oxidation state?
(A) Iodine
(B) Bromine
(C) Chlorine
(D) Fluorine
(A) Iodine
4. The anhydride of HClO4 is:
(A) ClO2
(B) ClO3
(C) Cl2O2
(D) Cl2O7
(D) Cl2O7
5. Which one is used for arc welding and cutting?
(A) Xenon
(B) Radon
(C) Argon
(D) Helium
(C) Argon
6. Zinc oxide is an example of :
(A) Acidic oxide
(B) Basic oxide
(C) Amphoteric oxide
(D) Neutral oxide
(C) Amphoteric oxide
7. Hydrogen bond is the strongest between the molecules of:
(A) HF
(B) HI
(C) HBr
(D) HCl
(A) HF
8. Which of the following hydrogen halide is the weakest acid in
solution?
(A) HF
(B) Hi
(C) HBr
(D) HCl
(A) HF
9. Chlorine heptoxide (Cl2O7)reacts with water to
form:
(A) Hypochlorous acid
(B) Chlorine acid
(C) Perchloric acid
(D) Chlorine and oxygen
(C) Perchloric acid
10. Which halogen reacts spontaneously with Au to produce Au3+?
(A) Bromine
(B) Fluorine
(C) Iodine
(D) Chlorine
(D) Chlorine
11. Which of the following halogen is used in radiotherapy?
(A) Rn
(B) Ar
(C) Kr
(D) Xe
(A) Rn
12. In a discharge tube, neon glows
(A) Bluish
(B) Pinkish
(C) Reddish
(D) Greenish
(C) Reddish
13. Who reported the first noble gas?
(A) Frankland
(B) William Ramsay
(C) Cavendish
(D) None of these
(B) William Ramsay
14. Who discovered Helium?
(A) Frankland and Lockyer
(B) Chadwick
(C) Rutherford
(D) None of these
(A) Frankland and Lockyer
15. Bleaching powder is an example of :
(A) Mixed salts
(B) Normal salts
(C) Complex salts
(D) Double salts
(A) Mixed salts
16. The acid used for etching of glass is:
(A) Aqua Regia
(B) HF
(C) HCl
(D) H2SO4
(B) HF
17. Which of the following acid is stronger?
(A) HF
(B) HI
(C) HBr
(D) HCl
(B) HI
18. What is the color of iodine in carbon tetrachloride
(CCl4)?
(A) Violet
(B) Brown
(C) Violet
(D) Colorless
(A) Violet
19. Iodine stains can be removed by:
(A) Na2S2O3
(B) Na2S
(C) NaCl
(D) CaSO4
(A) Na2S2O3
20. Which is used as non stick coating for cooking pans?
(A) Teflon
(B) Krypton
(C) Argon
(D) Freon
(A) Teflon
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