IGCSE O Level Chemistry MCQs – Mock Test 78

Chemical to Electrical Energy MCQs with Answers PDF Download – Test 78

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Download the "Chemical to Electrical Energy Study" App (iOS & Android): Duration of bright-bulb can be enhanced, if along with copper; MCQ with answers: the acid is more dilute, magnesium is used, graphite, and zinc. Practice Electricity and Chemistry Questions and Answers, Google Book to download free chapter for chemistry digital learner development.

Chemical to Electrical Energy MCQs – Mock Test 78 PDF Download

MCQ 386: Duration of bright-bulb can be enhanced, if along with copper:

magnesium is used
the acid is more dilute
zinc
graphite

MCQ 387: Sulfate ion can be written symbolically as:

SO₄^2-
SO₃^2-
SO₄^2-
S^2-

MCQ 388: What is true about Impurities?

they lowers the boiling point
they lowers the freezing point
they lowers melting points
they raises the melting point

MCQ 389: Sodium Carbonate Na₂CO₃ indicates that for each Carbonate ion (CO₃^-2), number of Sodium ions (Na⁺) are:

MCQ 390: The chemical formula of anhydrous Monosodium Phosphate is:

NaPO₃
NaH₂PO₄
Na₂CO₃.10H₂O
NaH₂PO₄.H₂O

Chemical to Electrical Energy MCQ App & eBook – IGCSE O Level Chemistry Study Guide

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