IGCSE O Level Chemistry Practice Test 43

Strong and Weak Acids Quiz PDF: Questions and Answers - 43

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Strong & Weak Acids Questions and Answers PDF Download: Quiz 43

MCQ 211: Acid becomes colorless when added with

A) screened methyl orange indicators

B) phenolphthalein indicator

C) litmus indicator

D) universal indicator

MCQ 212: The purity of a substance can be estimated through

A) boiling points only

B) melting points only

C) sublimation point

D) boiling and melting points

MCQ 213: At 100 °C, the speed of reaction becomes

A) 16 times faster

B) 64 times faster

C) 128 times faster

D) 148 times faster

MCQ 214: In plenty of space, natural movement of particles occurs due to

A) concentration gradient

B) osmotic pressure

C) diffusion

D) active transport

MCQ 215: The formula of Lithium chloride is

A) LiCl₂

B) Li₂Cl

C) LiCl

D) Li₃Cl₂

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