Question

0. Common salt (NaCl) is not used as a raw
material for preparation of which one of the
following compounds?
(a)
Bleaching powder
Baking soda
(b)
(e)
Plaster of Paris
Washing soda​

Answer 1

Answer:

ᴩʟᴀꜱᴛᴇʀ ᴏꜰ ᴩᴀʀɪꜱ

ᴩʟᴀꜱᴛᴇʀ ᴏꜰ ᴩᴀʀɪꜱ ɪꜱ ᴜꜱᴇᴅ ᴛᴏ ᴍᴀᴋᴇ ꜱᴄᴜʟᴩᴛᴜʀᴇꜱ ᴀɴᴅ ᴍᴇᴛᴀʟ ᴄᴀꜱᴛɪɴɢꜱ ᴜꜱᴇᴅ ᴀꜱ ᴅᴇᴄᴏʀᴀᴛɪᴠᴇ ɪɴ ʙᴜɪʟᴅɪɴɢꜱ. ɪᴛ ɪꜱ ᴀʟꜱᴏ ᴜꜱᴇᴅ ɪɴ ʙᴜɪʟᴅɪɴɢꜱ ᴛᴏ ᴀᴠᴏɪᴅ ꜰɪʀᴇ ʜᴀᴢᴀʀᴅꜱ ᴀꜱ ᴩʟᴀꜱᴛᴇʀ ᴏꜰ ᴩᴀʀɪꜱ ɪꜱ ꜰɪʀᴇ ʀᴇꜱɪꜱᴛᴀɴᴛ. ɪᴛ ɪꜱ ᴜꜱᴇᴅ ᴀꜱ ᴀ ᴄᴏᴀᴛɪɴɢ ᴏɴ ᴡᴏᴏᴅ ᴀɴᴅ ᴍᴇᴛᴀʟ ꜱᴛʀᴜᴄᴛᴜʀᴇꜱ ᴛᴏ ᴀᴠᴏɪᴅ ᴀɴy ꜰɪʀᴇ ᴀᴄᴄɪᴅᴇɴᴛꜱ.

Answer 2

Answer: Common salt is not used as a raw material in the preparation of Plaster of Paris.

Explanation:

• Gypsum (calcium sulphate) powder and water are combined to create plaster of Paris, which quickly sets. It is most frequently used to build and hold ornamental plasterwork pieces that are put on cornices and ceilings.
• Despite the fact that many contemporary orthopedic casts are composed of fiberglass or thermoplastics, plaster of paris is still used in medicine to create casts that keep broken bones immobilized while they recover fully.
• When plaster of paris is cured, it becomes an incredibly porous substance that will absorb any fresh water that comes in contact with it.
• Plaster of Paris must have as many surface pores as possible filled in order to be waterproof for outdoor use or brief exposure to water.

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