MCQs of Aldehydes, Ketones and Carboxylic Acids

Showing 61 to 70 out of 162 Questions

61.

What is formalin ?

(a)	40 % aqueous solution of formaldehyde
(b)	5 % aqueous solution of formaldehyde
(c)	40 % aqueous solution of Acetaldehyde
(d)	50 % aqueous solution of formaldehyde

62.

For moderately strong acid which is true ?

63.

Carboxylic acids are weaker acids than _____

64.

Which electrolyte is used in Kolbe’s electrolytic reduction or electrolytic decarboxyation ?

(a)	Aqueous solution of sodium salts of fatty acid
(b)	Aqueous solution of potassium salts of fatty acid
(c)	(A) and (B) both
(d)	Aqueous solution of fatty acids

65.

Which product will obtain if the mixture of benzaldehyde and formaldehyde with aqueous NaOH ?

(a)	Benzyl alcohol and sodium formate
(b)	Sodium benzoate and methyl alcohol
(c)	Sodium benzoate and sodium chromate
(d)	Benzyl alcohol and methyl alcohol

66.

Which of the following compound having higher acidic hydrogen ?

67.

What is the IUPAC name of

{CH}_{3} COCH ({CH}_{3})_{2}

68.

Which is the proper reagent to form pent-3-en-2-ol from pant-3-en-2-on ?

69.

Fehling A and Fehling B is a _____

(a)	Solution of ${CuSO}_{4}$ and solution ${NH}_{4} OH$
(b)	Solution of ${CuSO}_{4}$ and solution of sodium potassium tartract.
(c)	Solution of ${CuSO}_{4}$ and solution of sodium sytrate.
(d)	Solution of ${CuSO}_{4}$ and solution of NaOH

70.

Which of the compounds can not give a semica benzon and oxime ?

Showing 61 to 70 out of 162 Questions