give two merits and demerits of detergents as per CBSE syllabus answer plz fast
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Advantages of Detergents:
1. Greater cleansing efficiency is achieved with modem detergents. They do not combine with the calcium, magnesium, and other salts present in varying degrees in any water, and thus are not wasted.
2. If soap deposits have left clothes stiff and gray, a soap less detergent will remove the soapy deposits. As a result clothes feel soft and fluffy-look new again.
3. Detergents have greater efficiency against acids. They wash effectively even in an acid medium.
Disadvantages of Detergents:
1. Excessive alkalies used in some detergents can damage the fabric.
2. Colour may run out while using cheaper variety of detergents.
3. More amount of water is required for rinsing to remove foam, otherwise it will damage the fabric.
4. Sometimes some detergents react in hard water with calcium, or magnesium compounds to form curds that can be re-deposited on fabric.
1. Greater cleansing efficiency is achieved with modem detergents. They do not combine with the calcium, magnesium, and other salts present in varying degrees in any water, and thus are not wasted.
2. If soap deposits have left clothes stiff and gray, a soap less detergent will remove the soapy deposits. As a result clothes feel soft and fluffy-look new again.
3. Detergents have greater efficiency against acids. They wash effectively even in an acid medium.
Disadvantages of Detergents:
1. Excessive alkalies used in some detergents can damage the fabric.
2. Colour may run out while using cheaper variety of detergents.
3. More amount of water is required for rinsing to remove foam, otherwise it will damage the fabric.
4. Sometimes some detergents react in hard water with calcium, or magnesium compounds to form curds that can be re-deposited on fabric.
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