IGCSE O Level Chemistry Practice Test 92

Percent Composition of Elements Multiple Choice Questions (MCQ) PDF - 92

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The MCQ Quiz: In Calcium Chloride, the percentage composition of Calcium is; "Percent Composition of Elements" App APK Download (Free) with answers 0.3722, 0.4621, 0.4621 and 0.36112 to study online certificate courses. Study chemical formulae and equations questions and answers, Apple Book to download free sample for GRE test prep classes.

Percent Composition of Elements Questions and Answers PDF Download: Quiz 92

MCQ 456: In Calcium Chloride, the percentage composition of Calcium is

A) 0.4621

B) 0.3722

C) 0.4621

D) 0.36112

MCQ 457: Products of reaction CuO + HNO₃ → are

A) Cu₂NO₃ + H₂O

B) Cu(NO₃)₂ + H₂O

C) Cu(NO₃)₂ + H₂

D) Cu(NO₂)₄ + H₂

MCQ 458: Extra stability is gained in the third shell if the number of electrons is

A) 18

B) 2

C) 8

D) 10

MCQ 459: Many catalysts are

A) noble gases

B) transition metals

C) non-metals

D) inert gases

MCQ 460: Consider the equation ZnO + NaOH + H₂O → Na₂Zn(OH)₄. Moles of H₂O required to balance the equation would be

A) 1

B) 2

C) 3

D) 4

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