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πŸ§ͺ **Chemical Properties of Ethers**: Ethers are generally **less reactive** than alcohols, but they undergo important re...
23/08/2026

πŸ§ͺ **Chemical Properties of Ethers**: Ethers are generally **less reactive** than alcohols, but they undergo important reactions under specific conditions. Key reactions include **cleavage by hydrogen halides (HI/HBr)**, **formation of oxonium salts with strong acids**, and **peroxide formation on prolonged exposure to air and light**. Ethers are also relatively stable toward many **bases, reducing agents, and mild oxidizing agents**.

πŸ§ͺ **Physical Properties of Ethers**: Ethers are generally **colorless, volatile liquids** with characteristic odors. The...
23/08/2026

πŸ§ͺ **Physical Properties of Ethers**: Ethers are generally **colorless, volatile liquids** with characteristic odors. They have **lower boiling points than corresponding alcohols** because they cannot form strong intermolecular hydrogen bonds with themselves. Lower ethers are **slightly soluble in water**, while they dissolve well in many **organic solvents**. Ethers are also generally **flammable** and form explosive peroxides on prolonged exposure to air and light.

22/08/2026

Chemistry Experiment βš—οΈπŸ”¬

Chemistry experiments help us understand chemical reactions, properties of substances and laboratory techniques through practical observation.

πŸ“Œ Remember:
πŸ”Ή Observe carefully πŸ‘€
πŸ”Ή Use correct apparatus πŸ§ͺ
πŸ”Ή Follow safety rules ⚠️
πŸ”Ή Record observations accurately πŸ“
πŸ”Ή Draw the correct conclusion βœ…

πŸ“š Chemistry Practical | Class 11 & 12 | NCERT

πŸ§ͺ **Preparation of Ethers**: Ethers can be prepared mainly by **dehydration of alcohols** and the **Williamson ether syn...
22/08/2026

πŸ§ͺ **Preparation of Ethers**: Ethers can be prepared mainly by **dehydration of alcohols** and the **Williamson ether synthesis**. In Williamson synthesis, an **alkoxide ion (RO⁻)** reacts with a **primary alkyl halide (R–X)** through an **SN2 reaction** to form an ether. Acid-catalyzed dehydration of alcohols is especially useful for preparing **symmetrical ethers**.

πŸ§ͺ **Introduction & Nomenclature of Ethers**: Ethers are **organic compounds in which an oxygen atom is bonded to two alk...
22/08/2026

πŸ§ͺ **Introduction & Nomenclature of Ethers**: Ethers are **organic compounds in which an oxygen atom is bonded to two alkyl or aryl groups**, represented as **R–O–Rβ€²**. In IUPAC nomenclature, ethers are named as **alkoxyalkanes**, where the smaller group becomes the **alkoxy substituent** and the larger group is chosen as the parent alkane. For example, **CH₃–O–CHβ‚‚CH₃ β†’ methoxyethane**.

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22/08/2026

Follow for more notes like this....πŸ‘‡

21/08/2026

Q.Which solution has the highest boiling point?
A) 0.1 M glucose
B) 0.1 M NaCl
C) 0.1 M urea
D) 0.1 M sucrose

21/08/2026

Q.Which of the following is a Lewis base?
A) BF₃
B) AlCl₃
C) NH₃
D) H⁺

πŸ§ͺ **Uses of Phenols**: Phenols are widely used in **pharmaceuticals, disinfectants, antiseptics, plastics, resins, dyes,...
21/08/2026

πŸ§ͺ **Uses of Phenols**: Phenols are widely used in **pharmaceuticals, disinfectants, antiseptics, plastics, resins, dyes, and chemical synthesis**. Phenol is an important raw material for producing **Bakelite, bisphenol-A, picric acid, salicylic acid, and various medicinal compounds**. Its derivatives are also extensively used in **industrial and laboratory applications**.

Velocity is the rate of change of displacement with time. It is a vector quantity.πŸ“Œ Formula:v = Ξ”x / Ξ”tπŸ”Ή SI Unit β†’ m/sπŸ”Ή ...
21/08/2026

Velocity is the rate of change of displacement with time. It is a vector quantity.

πŸ“Œ Formula:
v = Ξ”x / Ξ”t

πŸ”Ή SI Unit β†’ m/s
πŸ”Ή Has magnitude + direction
πŸ”Ή Average velocity β†’ Total displacement / Total time

πŸ’‘ Remember:
Speed β†’ Scalar
Velocity β†’ Vector 🧠

πŸ“š Class 9/11 Physics | Motion | NCERT

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