O Level Chemistry Practice Test 7

Method of Purification Quiz Questions PDF Download - 7

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The e-Book Method of Purification Quiz Questions, method of purification MCQ with answers PDF chapter 9-7 to learn online courses, o level chemistry tests. Practice Methods of purification trivia questions, method of purification Multiple Choice Questions (MCQ Quiz) for online college degrees. The e-Book "Method of Purification Quiz" App Download: method of purification, electrolyte and non electrolyte, redox reactions, mass, volume, time and temperature, protons, neutrons and electrons test prep for two year online colleges.

The Quiz "Alternative techniques to crystallization involve" PDF, Method of Purification App Download (Free) with centrifuging, decanting only, filtration, and decanting and centrifuging choices for GRE subject test tutoring. Solve methods of purification questions and answers, Amazon eBook to download free sample for SAT prep classes.

Chemistry: Method of Purification Quiz PDF Download

MCQ: Alternative techniques to crystallization involve

A) decanting only

B) centrifuging

C) filtration

D) decanting and centrifuging

MCQ: If molten Lead Bromide (PbBr₂) is electrolyzed,

A) at anode, brown fumes of bromide gas are given off

B) at anode, molten lead can be seen

C) at cathode, brown fumes can be seen

D) at cathode, lead bromide can be seen

MCQ: In an acidified solution of Potassium Dichromate(VI) (K₂Cr₂O₇), Dichromate ion (Cr₂O₇^-2) becomes reduced to

A) Chromate (V) ions

B) Chromium (III) ions

C) Chromium (II) ions

D) Chromium (VI) ions

MCQ: Which one of them is correct about electronic thermometers?

A) there is mercury in glass thermometer

B) there is alcohol in glass thermometer

C) they are used to reduce the risk of mercury poisoning if broken

D) none of above

MCQ: In the periodic table, the period number indicates the number of

A) neutrons

B) protons

C) electrons

D) photons

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