IGCSE O Level Chemistry Competitive Exam: Mock Test 11

Valence Electrons Notes Questions with Answers PDF Download - 11

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The Quiz: Number of electrons (e^-) in phosphorus (P) is 15, valence electrons shall be; "Valence Electrons" App (iOS, Android) with answers: 8, 2, 4, and 5 for SAT subject test tutoring. Study Structure of Atom Questions and Answers, Apple Book to download free sample for best SAT prep courses online.

Valence Electrons Quiz with Answers PDF Download: MCQs 11

MCQ: 51

Number of electrons (e^-) in phosphorus (P) is 15, valence electrons shall be

MCQ: 52

Which statement is true about when the hot molten liquid cools?

first crystals are the most pure
impure substances may also form the crystals
it turns into gas
it turns into aqueous solution

MCQ: 53

In Universal indicators, red color shows

strong acids
strong alkalis
weak acids
weak bases

MCQ: 54

In the periodic table, valence electrons are indicated by

Group Number
Shell Number
Period Number
Atomic mass

MCQ: 55

What is true about bases (OH^-)?

they are corrosive
they turn litmus from blue to red
they turn litmus from red to blue
they are non-metal oxides

Valence Electrons Competitive Exam: IGCSE O Level Chemistry App & eBook Notes

Chemical Symbols MCQs

Ions and Ionic Bonds MCQs

Relative Molecular Mass MCQs

Evaporation MCQs

Distillation: Purification Process MCQs

Pure Substances and Mixtures MCQs

Acids: Properties and Reactions MCQs

Chemical formulas MCQs

Atoms and Elements MCQs

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