MCQs Of Analytical Chemistry, Past Year Questions JEE Mains, Class 12, Chemistry


5 Questions MCQ Test Class 12 Chemistry 35 Years JEE Mains &Advance Past yr Paper | MCQs Of Analytical Chemistry, Past Year Questions JEE Mains, Class 12, Chemistry


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This mock test of MCQs Of Analytical Chemistry, Past Year Questions JEE Mains, Class 12, Chemistry for JEE helps you for every JEE entrance exam. This contains 5 Multiple Choice Questions for JEE MCQs Of Analytical Chemistry, Past Year Questions JEE Mains, Class 12, Chemistry (mcq) to study with solutions a complete question bank. The solved questions answers in this MCQs Of Analytical Chemistry, Past Year Questions JEE Mains, Class 12, Chemistry quiz give you a good mix of easy questions and tough questions. JEE students definitely take this MCQs Of Analytical Chemistry, Past Year Questions JEE Mains, Class 12, Chemistry exercise for a better result in the exam. You can find other MCQs Of Analytical Chemistry, Past Year Questions JEE Mains, Class 12, Chemistry extra questions, long questions & short questions for JEE on EduRev as well by searching above.
QUESTION: 1

When H2S is passed through Hg2S we get [2002]

Solution:

When H2S is passed through Hg2S we get a mixture of mercurous sulphide and mercury (Hg2S + Hg) .

QUESTION: 2

How do we differentiate between Fe3+ and Cr3+ in group III?

Solution:

When we add NH4Cl, it suppresses the ionisation of NH4OH and prevents the precipitation of higher group hydroxide in gp(III).
NOTE : Further ferric chloride and chromium chloride form different colour precipitates with NH4OH.

QUESTION: 3

Which one of the following statements is correct ?

Solution:

Between AgCl and AgI, AgI  is less soluble, hence ammonia can dissolve ppt. of AgCl only due to formation of complex as given below: AgCl + 2NH3 → [Ag (NH3)2]Cl

QUESTION: 4

The compound formed in the positive test for nitrogen with the Lassaigne solution of an organic compound is [2004]

Solution:

Prussian blue Fe4 [Fe(CN)6 ]3 is formed in lassaigne test for nitrogen.

QUESTION: 5

The equation which is balanced and represents the correct product(s) is: [JEE M 2014] 

Solution:

The complex [CoCl(NH3)5]+ decomposes under acidic medium, so