IGCSE O Level Chemistry Practice Test 56

Universal indicators Multiple Choice Questions (MCQ) PDF - 56

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Universal indicators Questions and Answers PDF Download: Quiz 56

MCQ 276: In Universal indicators, a pH of 4 to 7 indicates

A) strong acids

B) weak acids

C) weak alkalis

D) strong alkalis

MCQ 277: H₂SO₄ is the formula of

A) Sulfatic acid

B) Sulfuric acid

C) Sulfurous acid

D) Hydrogen Sulfide

MCQ 278: Expression of the ratio of the combining number of atoms or ions is called

A) valency

B) exponential notation

C) formula

D) isotopic charges

MCQ 279: Chemical substances slowing the rate of a chemical reaction is called as

A) pressure

B) concentration

C) catalysts

D) inhibitors

MCQ 280: In vacuum distillation, substance boils at a/an

A) exact temperature

B) temperature slightly above its boiling point

C) temperature below its boiling point

D) high pressures

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