Question

Different types of chemical reactions and examples

Answer 1

Types of chemical reaction

1. Combination reaction

NH3 + HCl - NH4Cl

2. Decomposition reaction

2H2O - 2H2 + O2

3. Displacement reaction

4. Double displacement reaction

......hope it will help you

Answer 2

A)Cᴏᴍʙɪɴᴀᴛɪᴏɴ ʀᴇᴀᴄᴛɪᴏɴs:-

⇒Tʜᴇ ʀᴇᴀᴄᴛɪᴏɴ ɪɴ ᴡʜɪᴄʜ ᴛᴡᴏ ᴏʀ ᴍᴏʀᴇ ᴛʜᴀɴ ᴛᴡo sᴜʙsᴛᴀɴᴄᴇ ᴄᴏᴍʙɪɴᴇ ᴛᴏɢᴇᴛʜᴇʀ ᴛᴏ ғᴏʀᴍ ᴀ sɪɴɢʟe ᴄᴏᴍᴘᴏᴜɴᴅ.

Eɢ:-

⇨2Mg + 02 ➔ 2MgO

B)Dᴇᴄᴏᴍᴘᴏsɪᴛɪᴏɴ ʀᴇᴀᴄᴛɪᴏɴ:-

⇒Tʜᴇ ʀᴇᴀᴄᴛɪᴏɴ ɪɴ ᴡʜɪᴄʜ ᴀ ᴄᴏᴍᴘᴏᴜɴᴅ ᴅᴇᴄᴏᴍᴘᴏsᴇs ᴛᴏ ғᴏʀᴍ ᴛᴡᴏ ᴏʀ ᴍᴏʀᴇ sᴜʙsᴛᴀɴᴄᴇs ɪs ᴄᴀʟʟᴇᴅ ᴅᴇᴄᴏᴍᴘᴏsɪᴛɪᴏɴ ʀᴇᴀᴄᴛɪᴏɴ.

Eɢ:-

⇨CaCO3 ➔ CaO + CO2

C)Dɪsᴘʟᴀᴄᴇᴍᴇɴᴛ ʀᴇᴀᴄᴛɪᴏɴ:-

⇒Tʜᴇ ʀᴇᴀᴄᴛɪᴏɴ ɪɴ ᴡʜɪᴄʜ ᴍᴏʀᴇ ʀᴇᴀᴄᴛɪᴠᴇ ᴍᴇᴛᴀʟ ᴅɪsᴘʟᴀᴄᴇs ᴛʜᴇ ʟᴇss ʀᴇᴀᴄᴛɪᴠᴇ ᴍᴇᴛᴀʟ ɪs ᴄᴀʟʟᴇᴅ ᴅɪsᴘʟᴀᴄᴇᴍᴇɴᴛ ʀᴇᴀᴄᴛɪᴏɴ.

Eɢ:-

⇨Fe + CuSO ➔ FeSO4 + Cu

D)Dᴏᴜʙʟᴇ ᴅɪsᴘʟᴀᴄᴇᴍᴇɴᴛ ʀᴇᴀᴄᴛɪᴏɴ:-

⇒Tʜᴇ ʀᴇᴀᴄᴛɪᴏɴ ɪɴ ᴡʜɪᴄʜ ᴛᴡᴏ ᴅɪғғᴇʀᴇɴᴛ ᴀᴛᴏᴍs ᴏʀ ɢʀᴏᴜᴘs ᴏғ (sᴜʙsᴛᴀɴᴄᴇ) ᴀᴛᴏᴍs ᴇxᴄʜᴀɴɢᴇ ғᴏʀ ᴇᴀᴄʜ ᴏᴛʜᴇʀ ɪs ᴄᴀʟʟᴇᴅ ᴅᴏᴜʙʟᴇ ᴅɪsᴘʟᴀᴄᴇᴍᴇɴᴛ ʀᴇᴀᴄᴛɪᴏɴ.

Eɢ:-

⇨Na2S04 (aq) + BaCl2 (aq) BaS04 (s) + 2 NaCl (aq)

E)Oxɪᴅᴀᴛɪᴏɴ ʀᴇᴅᴜᴄᴛɪᴏɴ ʀᴇᴀᴄᴛɪᴏɴ:-

⇒Tʜᴇ ʀᴇᴀᴄᴛɪᴏɴ ɪɴ ᴡʜɪᴄʜ ᴏxʏɢᴇɴ ɪs ᴀᴅᴅᴇᴅ / ʜʏᴅʀᴏɢᴇɴ ɪs ʀᴇᴍᴏᴠᴇᴅ ɪs ᴄᴀʟʟᴇᴅ ᴏxɪᴅᴀᴛɪᴏɴ ʀᴇᴀᴄᴛɪᴏɴ.

Eɢ:-

ʜᴇᴀᴛ

2Cu + 02 ───➺ 2CuO