Which of the following pairs has the highest bond order?
1) NO+ and CN+
2) CN- and NO+
3) CN- and CN+
4) O2^- and CN-
Answers
Answer:
ᴏᴘᴛɪᴏɴ 32ɪs ᴛʜᴇ ʀɪɢʜᴛ ᴀɴsᴡᴇʀ
Explanation:
CN − - 14 ᴇʟᴇᴄᴛʀᴏɴs (6 ғʀᴏᴍ ᴄᴀʀʙᴏɴ, 7 ғʀᴏᴍ ɴɪᴛʀᴏɢᴇɴ, ᴀᴅᴅ 1 ғᴏʀ ɴᴇɢᴀᴛɪᴠᴇ ᴄʜᴀʀɢᴇ)
NO + - 14 ᴇʟᴇᴄᴛʀᴏɴs (8 ғʀᴏᴍ ᴏxʏɢᴇɴ, 7 ғʀᴏᴍ ɴɪᴛʀᴏɢᴇɴ, sᴜʙᴛʀᴀᴄᴛ 1 ғᴏʀ ᴘᴏsɪᴛɪᴠᴇ ᴄʜᴀʀɢᴇ)
CN + - 12 ᴇʟᴇᴄᴛʀᴏɴs (6 ғʀᴏᴍ ᴄᴀʀʙᴏɴ, 7 ғʀᴏᴍ ɴɪᴛʀᴏɢᴇɴ, sᴜʙᴛʀᴀᴄᴛ 1 ғᴏʀ ᴘᴏsɪᴛɪᴠᴇ ᴄʜᴀʀɢᴇ)
O 2− - 17 ᴇʟᴇᴄᴛʀᴏɴs (8 ғʀᴏᴍ ᴇᴀᴄʜ ᴏxʏɢᴇɴ, ᴀᴅᴅ 1 ғᴏʀ ɴᴇɢᴀᴛɪᴠᴇ ᴄʜᴀʀɢᴇ).
Sᴘᴇᴄɪᴇs ᴄᴏɴᴛᴀɪɴɪɴɢ ᴛʜᴇ sᴀᴍᴇ ɴᴜᴍʙᴇʀ ᴏғ ᴇʟᴇᴄᴛʀᴏɴs ʜᴀᴠᴇ ᴛʜᴇ sᴀᴍᴇ ʙᴏɴᴅ ᴏʀᴅᴇʀ.
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No. of electrons in
No. of electrons in
No. of electrons in
No. of electrons in
Molecular Orbital Configuration of compounds having 12 elements,
Here are 8 bonding electrons and 4 anti - bonding electrons.
Then bond order of compounds having 12 elements is,
Molecular Orbital Configuration of compounds having 14 elements,
Here are 10 bonding electrons and 4 anti - bonding electrons.
Then bond order of compounds having 14 elements is,
Molecular Orbital Configuration of compounds having 17 elements,
Here are 10 bonding electrons and 7 anti - bonding electrons.
Then bond order of compounds having 17 elements is,
Decreasing order of bond order of these compounds is,
This implies and have the highest bond order.
Hence (2) is the answer.