IGCSE O Level Chemistry Practice Test 54

Pure Substances and Mixtures MCQ (Multiple Choice Questions) PDF - 54

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Pure Substances & Mixtures Questions and Answers PDF Download: Quiz 54

MCQ 266: Fresh seawater is referred to as impure water because it contains

A) oxygen

B) aquatic animals

C) aquatic plants

D) dissolved salts

MCQ 267: Distillate formed after distillation is a/an

A) diluted solution

B) impure solution

C) condensed solution

D) concentrated solution

MCQ 268: Common covalent bonds include

A) MgO

B) KF

C) LiCl

D) CH₄

MCQ 269: Acid salt formed by Phosphoric acid and sodium phosphate is

A) sodium hydrogen phosphate NaHPO₄

B) sodium dihydrogen phosphate NaH₂PO₄

C) sodium trihydrogen phosphate Na₂H₃PO₄

D) sodium tetrachloro phosphate NaCH₄Cl₄

MCQ 270: NH₄ has

A) positive charge

B) double positive charge

C) negative charge

D) double negative charge

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