Question 96 - In infrared spectrum, one of the factors affecting peak location is the mass of the atoms. The stretching frequency of a bond connected to a lighter atom will be greater than the same bond connected to a heavier atom. (a) For halogens like florine (F), chlorine (Cl), bromine (Br), iodine (I) and astatine (At), what is their IUPAC group number? Hint : The proton numbers for F, Cl, Br, I and At are 9, 17, 35, 53 and 85 respectively. (b) For the compounds of H-F, H-Cl, H-Br, H-I and H-At, which one has the lowest stretching frequency and which one has the highest stretching frequency? State the reasons.
Answer Posted / kangchuentat
Answer 96 - (a) 17. (b) Lowest stretching frequency : H-At. Highest stretching frequency : H-F. Reasons : F has the lowest proton number 9 and At has the highest proton number 85. For the compound of H-X, the stretching frequency of the bond decreases when the mass of X increases and vice versa. The answer is given by Kang Chuen Tat; PO Box 6263, Dandenong, Victoria VIC 3175, Australia; SMS +61405421706; chuentat@hotmail.com; http://kangchuentat.wordpress.com.
Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
What are the major effects of alloying elements?
Why making capacity of the circuit breaker is higher than breaking capacity?
crank types
What is speed mode?
i cleared the written xam. for the post of atc now what i am going to prepare for the interview plz.guide me i dnt wanna loose this organisation bcoz its my dream company
what is meant by re-rolling motor? how it differs from standard motor?
What is minimum permicible value of leackage current for LT Panle when applying voltage up to 3 KV for 5 Minuits?
What is servo motor and what are different types of servo motor
What kind of concerns is associated with temperature pinch points in condensers?
Explain the process of commutation in a dc machine.
How much diesel does 1000 kva rating dg set at full load consume?
Explain the operation of 1φ ac voltage controller with rl load?
hai iam selected in po exam in allahabad bank . my interview date is 02-06-2009. so plese send me some sample question on my email. my email is nitinbikhani@yahoo.com
Explain superiority of tlc over paper chromatography.
What are the ASTM materials used to manufacture boilers?