Question

A substance which increases the efficiency of a catalys

Answer 1

Answer:

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A substance which increases the efficiency of a catalyst is known as promoter or activator.

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Answer 2

Explanation:

ᴄᴀᴛᴀʟʏsᴛ: ᴀ ᴄᴀᴛᴀʟʏsᴛ ɪs ᴛʜᴀᴛ sᴜʙsᴛᴀɴᴄᴇ, ᴡʜɪᴄʜ ᴇɪᴛʜᴇʀ ɪɴɪᴛɪᴀᴛᴇs ᴀ ᴄʜᴇᴍɪᴄᴀʟ ʀᴇᴀᴄᴛɪᴏɴ ᴏʀ ᴀᴄᴄᴇʟᴇʀᴀᴛᴇ ᴛʜᴇ ʀᴇᴀᴄᴛɪᴏɴ ᴡɪᴛʜᴏᴜᴛ ᴜɴᴅᴇʀɢᴏɪɴɢ ᴀɴʏ ᴘᴇʀᴍᴀɴᴇɴᴛ ᴄʜᴀɴɢᴇ ɪɴ ɪᴛsᴇʟғ.

ʜᴏᴡᴇᴠᴇʀ, ᴛʜᴇʏ ᴀғғᴇᴄᴛ ᴛʜᴇ ʀᴀᴛᴇ ᴏғ ʀᴇᴀᴄᴛɪᴏɴ ʙʏ ɪɴᴄʀᴇᴀsɪɴɢ ᴛʜᴇ sᴘᴇᴇᴅ ᴏғ ʀᴇᴀᴄᴛɪᴏɴ.

ᴛʜᴇ ᴄᴀᴛᴀʟʏsᴛs ᴀʀᴇ ᴄᴀʟʟᴇᴅ ᴀs ᴛʜᴇ ᴄʜᴇᴍɪᴄᴀʟ ᴀᴄᴛɪᴠᴀᴛᴏʀs ᴡʜɪᴄʜ ᴅᴏ ɴᴏᴛ ɢᴇᴛ ɪɴᴠᴏʟᴠᴇᴅ ɪɴ ᴛʜᴇ ᴘʀᴏᴅᴜᴄᴛ ғᴏʀᴍᴀᴛɪᴏɴ ,ʙᴜᴛ ᴛʜᴇɪʀ ᴘʀᴇsᴇɴᴄᴇ ᴄᴀᴜsᴇs ᴀ ʀᴇᴀᴄᴛɪᴏɴ ᴛᴏ ᴏᴄᴄᴜʀ ғᴀsᴛᴇʀ.

ᴇx: sᴏᴍᴇ ᴍᴇᴛᴀʟs ʟɪᴋᴇ; ɴɪ (ɴɪᴄᴋᴇʟ), ᴘᴛ (ᴘʟᴀᴛɪɴᴜᴍ), ғᴇ (ɪʀᴏɴ) ᴇᴛᴄ,. ᴏʀ ᴄʜᴇᴍɪᴄᴀʟ ᴄᴏᴍᴘᴏᴜɴᴅs ʟɪᴋᴇ ᴀʟᴄᴏʜᴏʟs, ᴋᴍɴᴏ4ᴇᴛᴄ.