Chemistry Qualitative Analysis Organic Compounds Online Exam Quiz
Chemistry Qualitative Analysis Organic Compounds GK Quiz. Question and Answers related to Chemistry Qualitative Analysis Organic Compounds. MCQ (Multiple Choice Questions with answers about Chemistry Qualitative Analysis Organic Compounds
Which compound gets precipitated in the detection of carbon and hydrogen?
Options
A : Copper
B : Carbon dioxide
C : Calcium carbonate
D : Copper sulphate
Carbon and hydrogen are detected by heating the compound with which of the following?
Options
A : Copper (II)oxide
B : Iron(II)oxide
C : Iron(III)oxide
D : Copper(I)oxide
In the test for nitrogen, the sodium fusion extract is acidified with which of the following?
Options
A : Dilute sulphuric acid
B : Dilute hydrochloric acid
C : Concentrated hydrochloric acid
D : Concentrated sulphuric acid
What is Lassaigne’s test extract called as?
Options
A : Fusion extract
B : Sodium fusion extract
C : Lassaigne extract
D : Sodium extract
Which is the oxidizing agent used in the test for phosphorous?
Options
A : Hydrogen peroxide
B : Potassium nitrate
C : Sodium peroxide
D : Nitric acid
Identify the element that cannot be detected by Lassaigne’s test.
Options
A : Nitrogen
B : Fluorine
C : Sulfur
D : Phosphorous
Potassium can replace sodium in lassaigne’s test.
Options
A : True
B : False
C :
D :
In case of both nitrogen and sulphur existence, Prussian blue is still the color of the end product.
Options
A : True
B : False
C :
D :
What is the color of the precipitate obtained in the test for sulphur?
Options
A : White
B : Black
C : Violent
D : Blue
A X color precipitate, which is Y in ammonium hydroxide indicates presence of chlorine. Identify X and Y.
Options
A : X = yellowish, Y = soluble
B : X = yellow, Y = insoluble
C : X = white, Y = insoluble
D : X = white, Y = soluble
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