2nd Year Chemistry MCQs F.Sc. Part 2
Chapter No.5
The Halogens and The Noble Gases
Total MCQs = 48
31. An element which has a high ionization energy and tends to be chemically inactive would most likely to be: (ECAT 2015)
A. An alkai metal
B. A tranisition element
C. A noble gas
D. A halogen
Answer:
C. A noble Gas
32. Which of the following represents the correct electronic configuration of the outmost energy level of an element of zero (VIIIA) group in the ground state?
A. s2p2
B. s2p4
C. s2p5
D. s2p6
Answer:
D. s2p6
33. Which one of the following is the structure of Teflon? (MDCAT 2018)
A. -(CF2 – CF2)n –
B. -(CH2 – CH2)n –
C. -(CF2 – CCl2)n –
D. -(CF2 – CH2)n –
Answer:
A. -(CF2 – CF2)n –
34. The strongest acid among the following is ? (UHS 2010)
A. HF
B. HI
C. HCl
D. HBr
Answer:
B. HI
35. The reduction of which of the following produces Hydroflouric acid? (NET 2015)
A. HeF2 + H 2 → 2HF + xe
B. XeF4 + 2H 2 → 4HF
C. XeF2 + 3H 2 → 6HF
D. All of the above
Answer:
D. All of the above
