Which of the following are known as mercaptans?

1. Thio-alcohols                         

2. Thio-ethers

3. Thio-aldehydes                     

4. Thio-acids

Concept Questions :-

Ethers: Preparation, Physical & Chemical Properties, Uses
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Glycol condenses with ketones to give:

1. cyclic acetals                   2. cyclic ketals

3. acetaldehyde                   4. oxalic acid

Concept Questions :-

Alcohols: Preparation, Physical and Chemical Properties
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Identity Z in the sequence of reactions,

CH3CH2CH=CH2HBr2/H2O2C2H5ONaZ

(a) CH3-(CH2)3-OCH2CH3

(b) (CH3)2CH2-OCH2CH3

(c) CH3(CH2)4-OCH3

(d) CH3CH2-CH(CH3)-OCH2CH3

Concept Questions :-

Ethers: Preparation, Physical & Chemical Properties, Uses
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Salol is used as:

(a) antiseptic                                (b) antipyretic

(c) both (a) and (b)                      (d) none of these

Concept Questions :-

Ethers: Preparation, Physical & Chemical Properties, Uses
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Identify Z in the following series,

 CH3-CH2-CH2OH160-180°Cconc. H2SO4XBr2Y2. NaNH21. Alc. KOHZ

Concept Questions :-

Alcohols: Preparation, Physical and Chemical Properties
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Ethyl propanoate on reduction with LiAlH4 yields:

1. methanol

2. ethanol and propanol

3. propane

4. mixture of ethanol and methanol

Concept Questions :-

Ethers: Preparation, Physical & Chemical Properties, Uses
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Phenol does not react with: 

(a) Na2CO                                (b) NaOH

(c) NaHCO3                                 (d) KOH

Concept Questions :-

Phenols: Preparation, Properties, Acidic Nature of Phenol
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Which alcohol is most acidic?

1. Methanol                               

2. Ethanol

3. Isopropyl alcohol                     

4. t-butyl alcohol

Concept Questions :-

Alcohols: Preparation, Physical and Chemical Properties
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Consider the following reaction,

PhenolZn-dustXAnhy.AlCl3CH3ClYAlk.KMnO4Z                                     

The product Z is

(a) toluene

(b) benzaldehyde

(c) benzoic acid

(d) benzene

Concept Questions :-

Phenols: Preparation, Properties, Acidic Nature of Phenol
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The product in the reaction is:

C2H5OH P+I2AEtherMgBHCHOCH2OD

1. propanal                           

2. butanal

3. n-butanol                         

4.  n-propanol

Concept Questions :-

Alcohols: Preparation, Physical and Chemical Properties
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