Lubricant used in watch is:

(1) coconut oil               

(2) pine oil

(3) animal oil                 

(4) glycerol

Subtopic:  Alcohols: Preparation & Properties |
 70%
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The value of C-O-C angle in ether molecule is -

1. 180° 2. 150°
3. 90° 4. 110°
Subtopic:  Ethers: Preparation & Properties, Uses |
 74%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh

Pyroligneous acid contains:

(1) CH3COOH (10%), CH3OH (2.5%), CH3COCH3 (0.5%)

(2) C2H5OH (10%), CH3OH (2.5%), CH3COCH3 (0.5%)

(3) CH3COCH3 (10%), C2H5OH (2.5%), CH3OH (0.5%)

(4) none of the above

Subtopic:  Alcohols: Preparation & Properties |
 51%
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An aldehyde on treatment with Zn/HCl yields:

1. 1°  alcohol                       

2. 2°  alcohol

3. 3°  alcohol                       

4. None of the above

Subtopic:  Alcohols: Preparation & Properties |
 76%
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The alcohol that gives carboxylic acids having the same number of carbon atoms is -

1. Primary 2. Secondary
3. Tertiary 4. None of the above.
Subtopic:  Alcohols: Preparation & Properties |
 79%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh

The toxicity order for CH3OH, C2H5OH and C3H7OH is:

(1) C2H5OH < CH3OH < C3H7OH

(2) C3H7OH < C2H5OH < CH3OH

(3) C2H5OH < C3H7OH < CH3OH 

(4) CH3OH < C2H5OH < C3H7OH

Subtopic:  Alcohols: Preparation & Properties |
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The organic compound present in the tincture of iodine is:

1. Alcohol

2. CCI4

3. Acetone

4. CS2

Subtopic:  Alcohols: Preparation & Properties |
 65%
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The cleavage of an aryl-alkyl ether with hydrogen halide will give:

(1) a molecule each of an alkyl halide and water

(2) a molecule each of an aryl halide and water

(3) a molecule each of an alkyl halide, aryl halide and water

(4) a molecule each of phenol and an alkyl halide

Subtopic:  Phenols: Preparation & Properties |
 72%
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Wood spirit is:

1. CH3OH

2. C2H5OH

3. CH3CH2CH2OH

4. None of the above

Subtopic:  Mechanism of Dehydration, Methanol & Ethanol |
 77%
From NCERT
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Ether fire can be extinguished by:

(1) sand

(2) pyrene

(3) CO2

(4) all of these

Subtopic:  Ethers: Preparation & Properties, Uses |
 77%
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NEET 2023 - Target Batch - Aryan Raj Singh
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