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प्रश्न
Give one chemical test each to distinguish between the following pairs of compounds:
(1) Ethanol and acetic acid
(2) Acetaldehyde and benzaldehyde
उत्तर
(1) Ethanol and acetic acid: Acetic acid turns blue litmus solution red but ethanol does not.
(2) Acetaldehyde and benzaldehyde: The given compound is treated with alkaline solution of iodine. If yellow ppt. - Acetaldehyde
No ppt. - Benzaldehyde
\[\ce{CH3CHO + 4NaOH +I2 ->\underset{\text{Iodoform}}{CHI3 v }HCOONa + 3H2O +3NaI}\]
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संबंधित प्रश्न
Fill in the blanks by choosing the appropriate word/words from those given in the brackets:
(iodoform, acetaldehyde, positive, greater, acidic, acetone, disaccharide, negative, increases, glucose, decreases, chloroform, polysaccharide, lactose, lesser, basic, cationic hydrolysis, anionic hydrolysis)
Calcium acetate on heating gives ________ which gives _______ on heating with iodine and sodium hydroxide solution.
Calculate the degree of hydrolysis of 0.2 (M) sodium acetate solution.
(Hydrolysis constant of sodium acetate = 5.6 × 10-10 and ionic product of H2O = 10-14 at 25°C).
When ammonium chloride and ammonium hydroxide are added to a solution containing both Al3+ and Ca2+ ions, which ion is precipitated first and why?
How many sodium ions and chloride ions are present in a unit cell of sodium chloride crystal?
Explain the following:
The pH value of acetic acid increases on the addition of a few drops of sodium acetate.
For the coordination complex ion [Co(NH3)6]3+
State the magnetic behaviour of the complexion.
How can the following conversion be brought about:
Acetic acid to methylamine.
[Fe(CN)6]4- is a coordination complex ion.
Is the complex ion diamagnetic or paramagnetic?
[Fe(CN)6]4- is a coordination complex ion.
What is the hybridisation state of the central metal atom?
[Fe(CN)6]4- is a coordination complex ion.
Write the IUPAC name of the complex ion.
