A compound A of formula C3H6Cl2 on reaction with alkali can give B of formula C3H6O or C of formula C3H4. B on oxidation gave a compound of the formula C3H7O2. C with dilute H2SO4 containing Hg2+ ion gave D of formula C3H6O, which with bromine and NaOH gave the sodium salt of C2H4O2. Then A is :

1. CH3CH2CHCl2

2. CH3CCl2CH3

3. CH2ClCH2CH2Cl

4. CH3CHClCH2Cl

 

Subtopic:  conversion chart for n to n carbon |
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Identify the product (A) in following reaction series, CH3CNNa/C2H5OH(X)HNO2(Y)O(Z)Tollens reagent(A) :

1. CH3CHO

2. CH3CONH2

3. CH3COOH

4. CH- CH2-NHOH

Subtopic:  conversion chart for n to n carbon |
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Compound (A), C8H9Br , gives a white precipitate when warmed with alcholic AgNO3. Oxidation of (A) gives an acid (B), C8H6O4. (B) easily forms anhydride on heating. Identify the compound (A).

1.

 

2.

 

3.

 

4.

 

Subtopic:  Aromatic Conversion |
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Which of the following will give yellow precipitate with I2/NaOH?

1. CH3-CO-O-CO-CH3

4.Both (2) and (3)

Subtopic:  Aldehydes & Ketones |
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A nitrogeneous substance X is treated with red P/I2,AgNO2, HNO2 and the product so formed is further treated with NaOH solution, which produces blue colouration. X can be

1. CH3CH2NH2       R   R'  R"  C  OH  Red P+I2     I      AgNO2     NO2

2 CH3CH2NO2

3. CH3CH2ONO

4 (CH3)2CHNO2

Subtopic:  Differentiation of Organic Compound |
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The compound which reacts fastest with Lucas reagent at room temperature is:
1. Butan-1-ol
2. Butan-2-ol
3. 2-methylpropan-1-ol
4. 2-methylpropan-2-ol

Subtopic:  Differentiation of Organic Compound |
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Methanol and ethanol can be distinguished by the following:
1. By reaction with metallic sodium
2. By reaction with caustic soda
3. By heating with iodine and washing soda
4. By heating with zinc and inorganic mineral acid

Subtopic:  Differentiation of Organic Compound |
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Identify (X) in the sequence :

C3H8O  (X) H2SO4K2Cr2O7 C3H6O WarmI2 +NaOH CHI3

(1) CH3-CH2-CH2OH

(2) CH3-CH-CH3             |             OH

(3) CH3-O-CH2-CH3

(4) CH3-CH2-CHO

Subtopic:  Aldehydes & Ketones |
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In order to accomplish the following conversion, what reagent and conditions would be required?

1. Cold sodium hydroxide

2. Hot conc. sodium hydroxide

3. Potassium tertiary butoxide and heat

4. Hot water

Subtopic:  conversion chart for n to n carbon |
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An amine is reacted with benzene sulphonyl chloride then a solid compound is formed which is insoluble in alkali. The amine is:

(1) CH3-CH2-NH2

(2) CH3-NH-CH2-CH3

(3) (CH3)3N

(4) C6H5-NH2

Subtopic:  Differentiation of Organic Compound |
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