Chemistry · JEE

Chemical principles involved in the qualitative salt analysis Cations: Pb2+, Cu2+, Al3+, Fe3+, Zn2+, Ni2+, Ca2+, Ba2+, Mg2+, NH4+ Mock Test for JEE

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Syllabus context

Part of Principles Related to Practical Chemistry in JEE Main Chemistry.

Free sample questions

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Q1ChemistryUnit 20: Principles Related to Practical Chemistry

A student takes about

4 \mathrm{ml}

of distilled water in four test tubes marked

P, Q, R

and

S .

He then dissolves in each test tube, an equal amount of various salts, viz. sodium sulphate in

P,

potassium sulphate in

Q,

calcium sulphate in

R

and magnesium sulphate in

S

. After that, he adds an equal amount of soap solution in each test tube. On shaking each of these test tubes well, he observes a good amount of lather (foam) in the test tube marked:

Q2ChemistryUnit 20: Principles Related to Practical Chemistry

In the soil profile, which layer is harder and more compact?

Q3ChemistryUnit 20: Principles Related to Practical Chemistry

Maximum silk production is in which of the following state?

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For a topic-level test, aim for 20–30 minutes. For a full subject mock, allow 60–90 minutes to mirror JEE timing.

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