Identify the choice that best completes the statement nr answers the question Wh
ID: 476587 • Letter: I
Question
Identify the choice that best completes the statement nr answers the question Which of the following diatomic molecules has the highest boiling point? H_2 N_2 O_2 Br_2 Which of the following is true for the reaction of sodium metal and chlorine gas? elections art shared between Na and Cl atoms electrons are transferred from Na to Cl atom electrons are transferred from Cl to Na atom nothing happens between Na and Cl atoms In which of the following substances would you expect to find ionic bonding? CH_3Cl SO_2 HCI KCl Which of the following correctly describes a sigma bond? a bond formed when two orbitals overlap head-on a bond formed when two orbitals overlap side-by-side a triple bond a double bondExplanation / Answer
Answer 1)
i) In case of non-polar diatomic molecules Boling point increases with molar mass of the substance.
ii) Of the given non-polar diatomic molecules Br2 has the highest molecular weight and hence is having Highest boiling point.
Answer option : (d) Br2
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Answer 2)
Na (At.No. 11) : Electronic configuration : [Ne] 3S1.
Cl (At.No. 17) Electronic configuration : [Ne] 3s2 3p5.
On complete transfer of 1 valence electron from Na to valance shell of Cl completes the octete of both species.
And thus, NaCl an ionic compound is formed.
Answer option : (b) electrons are transfered from Na to Cl.
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