Question

name two metals which will displace hydrogen from dilute acid and two will not?​

Answer 1

Answer:

zinc and Aluminium displace hydrogen from dilute acids as they are placed higher in metal reactivity series than hydrogen.

Mercury and Copper do not displace

hydrogen from dilute acids as they are placed lower in metal reactivity series than hydrogen.

Answer 2

ɴᴀᴍᴇ ᴛᴡᴏ ᴍᴇᴛᴀʟs ᴡʜɪᴄʜ ᴡɪʟʟ ᴅɪsᴘʟᴀᴄᴇ ʜʏᴅʀᴏɢᴇɴ ғʀᴏᴍ ᴅɪʟᴜᴛᴇ ᴀᴄɪᴅs, ᴀɴᴅ ᴛᴡᴏ ᴍᴇᴛᴀʟs ᴡʜɪᴄʜ ᴡɪʟʟ ɴᴏᴛ. ᴀɴsᴡᴇʀ: ɪʀᴏɴ ᴀɴᴅ ᴀʟᴜᴍɪɴɪᴜᴍ ᴡɪʟʟ ᴅɪsᴘʟᴀᴄᴇ ʜʏᴅʀᴏɢᴇɴ ғʀᴏᴍ ᴅɪʟᴜᴛᴇ ᴀᴄɪᴅs ᴀs ᴛʜᴇʏ ᴍᴏʀᴇ ʀᴇᴀᴄᴛɪᴠᴇ ᴛʜᴇɴ ʜʏᴅʀᴏɢᴇɴ. ᴍᴇʀᴄᴜʀʏ ᴀɴᴅ ᴄᴏᴘᴘᴇʀ ᴄᴀɴɴᴏᴛ ᴅɪsᴘʟᴀᴄᴇ ʜʏᴅʀᴏɢᴇɴ ғʀᴏᴍ ᴅɪʟᴜᴛᴇ ᴀᴄɪᴅs ᴀs ᴛʜᴇʏ ᴀʀᴇ ʟᴇss ʀᴇᴀᴄᴛɪᴠᴇ ᴛʜᴀɴ ʜʏᴅʀᴏɢᴇɴ.