Bleaching powder is not used for bleaching
Correct answer: B. Costly fabrics.
- A. Cotton
- B. Costly fabrics.
- C. linen
- D. paper pulp
Explanation
Bleaching powder (CaOCl2), a strong oxidizing agent, is commonly used for bleaching various materials, but it has limitations:Materials it can bleach:Cotton: It effectively whitens cotton fabrics.Linen: It's also suitable for bleaching linen materials.Paper pulp: It's used in the paper industry to bleach wood pulp, making white paper.Why it's unsuitable for costly fabrics:Harshness: Bleaching powder is a relatively harsh bleaching agent. It can weaken delicate fibers and damage the texture of expensive fabrics like silk or wool.Yellowing: Over time, it can cause yellowing or discoloration of these fabrics, diminishing their value.Alternatives: Gentler bleaching agents like hydrogen peroxide or sodium percarbonate are preferred for costly fabrics to preserve their integrity and color.Incorrect options and why they are bleached with bleaching powder:
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About Transition Elements
Transition elements are identified by their partially filled d subshells in atoms or common ions. The topic covers the electronic structure of d-block elements, including the filling order of 4s and 3d orbitals, variable oxidation states and the distinction between transition elements and elements with completely filled d subshells.
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