Question

Answer

a. BiH3 is the strongest reducing agent in Group 15 elements hydrides.

b. Cl2 acts as a bleaching agent.

c. Noble gases have very low boiling points.​

Answer 1

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(ᴀ) ᴏɴ ᴍᴏᴠɪɴɢ ᴅᴏᴡɴ ᴛʜᴇ ɢʀᴏᴜᴘ ᴀᴛᴏᴍɪᴄ sɪᴢᴇ ɪɴᴄʀᴇᴀsᴇs, ᴛʜᴇʀᴇғᴏʀᴇ, ᴇ–ʜ ʙᴏɴᴅ sᴛʀᴇɴɢᴛʜ ᴅᴇᴄʀᴇᴀsᴇs. ᴛʜᴜs, ʙɪ–ʜ ʙᴏɴᴅ ɪs ᴛʜᴇ ᴡᴇᴀᴋᴇsᴛ ᴀᴍᴏɴɢsᴛ ᴛʜᴇ ʜʏᴅʀɪᴅᴇs ᴏғ ɢʀᴏᴜᴘ 15 ᴀɴᴅ ʜᴇɴᴄᴇ ʙɪʜ3 ɪs ᴛʜᴇ sᴛʀᴏɴɢᴇsᴛ ʀᴇᴅᴜᴄɪɴɢ ᴀɢᴇɴᴛ.

(ʙ) ɪɴ ᴛʜᴇ ᴘʀᴇsᴇɴᴄᴇ ᴏғ ᴍᴏɪsᴛᴜʀᴇ ᴏʀ ɪɴ ᴀǫᴜᴇᴏᴜs sᴏʟᴜᴛɪᴏɴ, ᴄʟ2 ʟɪʙᴇʀᴀᴛᴇs ɴᴀsᴄᴇɴᴛ ᴏxʏɢᴇɴ

ᴄʟ2 + ʜ2ᴏ → 2ʜᴄʟ + [ᴏ]

ᴛʜᴇ ʙʟᴇᴀᴄʜɪɴɢ ᴀᴄᴛɪᴏɴ ᴏғ ᴄʟ2 ɪs ᴅᴜᴇ ᴛᴏ ᴏxɪᴅᴀᴛɪᴏɴ ᴡʜɪᴄʜ ɪs ᴘᴇʀᴍᴀɴᴇɴᴛ.

ᴄᴏʟᴏᴜʀᴇᴅ sᴜʙsᴛᴀɴᴄᴇ + [ᴏ] → ᴄᴏʟᴏᴜʀʟᴇss sᴜʙsᴛᴀɴᴄᴇ

(ᴄ) ɴᴏʙʟᴇ ɢᴀsᴇs ʙᴇɪɴɢ ᴍᴏɴᴏᴀᴛᴏᴍɪᴄ ʜᴀᴠᴇ ɴᴏ ɪɴᴛᴇʀᴀᴛᴏᴍɪᴄ ғᴏʀᴄᴇs ᴇxᴄᴇᴘᴛ ᴡᴇᴀᴋ ᴅɪsᴘᴇʀsɪᴏɴ ғᴏʀᴄᴇs ᴀɴᴅ ᴛʜᴇʀᴇғᴏʀᴇ ᴛʜᴇʏ ʜᴀᴠᴇ ᴠᴇʀʏ ʟᴏᴡ ʙᴏɪʟɪɴɢ ᴘᴏɪɴᴛs.

Answer 2

Answer:

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(ᴀ) ᴏɴ ᴍᴏᴠɪɴɢ ᴅᴏᴡɴ ᴛʜᴇ ɢʀᴏᴜᴘ ᴀᴛᴏᴍɪᴄ sɪᴢᴇ ɪɴᴄʀᴇᴀsᴇs, ᴛʜᴇʀᴇғᴏʀᴇ, ᴇ–ʜ ʙᴏɴᴅ sᴛʀᴇɴɢᴛʜ ᴅᴇᴄʀᴇᴀsᴇs. ᴛʜᴜs, ʙɪ–ʜ ʙᴏɴᴅ ɪs ᴛʜᴇ ᴡᴇᴀᴋᴇsᴛ ᴀᴍᴏɴɢsᴛ ᴛʜᴇ ʜʏᴅʀɪᴅᴇs ᴏғ ɢʀᴏᴜᴘ 15 ᴀɴᴅ ʜᴇɴᴄᴇ ʙɪʜ3 ɪs ᴛʜᴇ sᴛʀᴏɴɢᴇsᴛ ʀᴇᴅᴜᴄɪɴɢ ᴀɢᴇɴᴛ.

(ʙ) ɪɴ ᴛʜᴇ ᴘʀᴇsᴇɴᴄᴇ ᴏғ ᴍᴏɪsᴛᴜʀᴇ ᴏʀ ɪɴ ᴀǫᴜᴇᴏᴜs sᴏʟᴜᴛɪᴏɴ, ᴄʟ2 ʟɪʙᴇʀᴀᴛᴇs ɴᴀsᴄᴇɴᴛ ᴏxʏɢᴇɴ

ᴄʟ2 + ʜ2ᴏ → 2ʜᴄʟ + [ᴏ]

ᴛʜᴇ ʙʟᴇᴀᴄʜɪɴɢ ᴀᴄᴛɪᴏɴ ᴏғ ᴄʟ2 ɪs ᴅᴜᴇ ᴛᴏ ᴏxɪᴅᴀᴛɪᴏɴ ᴡʜɪᴄʜ ɪs ᴘᴇʀᴍᴀɴᴇɴᴛ.

ᴄᴏʟᴏᴜʀᴇᴅ sᴜʙsᴛᴀɴᴄᴇ + [ᴏ] → ᴄᴏʟᴏᴜʀʟᴇss sᴜʙsᴛᴀɴᴄᴇ

(ᴄ) ɴᴏʙʟᴇ ɢᴀsᴇs ʙᴇɪɴɢ ᴍᴏɴᴏᴀᴛᴏᴍɪᴄ ʜᴀᴠᴇ ɴᴏ ɪɴᴛᴇʀᴀᴛᴏᴍɪᴄ ғᴏʀᴄᴇs ᴇxᴄᴇᴘᴛ ᴡᴇᴀᴋ ᴅɪsᴘᴇʀsɪᴏɴ ғᴏʀᴄᴇs ᴀɴᴅ ᴛʜᴇʀᴇғᴏʀᴇ ᴛʜᴇʏ ʜᴀᴠᴇ ᴠᴇʀʏ ʟᴏᴡ ʙᴏɪʟɪɴɢ ᴘᴏɪɴᴛs.