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IGCSE O Level Chemistry Practice Test 33

Molecules and Compounds Quiz Questions and Answers PDF - 33

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Molecules & Compounds Questions and Answers PDF Download: Quiz 33

MCQ 161: Alloys are a form of which of the following?

A) mixture
B) compound
C) metal
D) transition metals

MCQ 162: What is true about baking powder?

A) it is acidic
B) it is alkaline
C) it is neutral
D) it is salty

MCQ 163: Relative formula mass of aluminum sulphate (NH4)2SO4 is

A) 132.14 g/mol
B) 113.14 g/mol
C) 139.33 g/mol
D) 143.69 g/mol

MCQ 164: If metal hydroxide (-OH-) and acid (H+) reaction to form Potassium Nitrate (KNO3), the other by-product will be

A) water
B) hydrogen
C) Carbon dioxide
D) water and carbon dioxide

MCQ 165: Polarization occurs due to

A) rapid dissolving of magnesium in dilute acid
B) slow dissolving of magnesium in conc. Acid
C) copper electrode gets covered with bubbles of hydrogen gas
D) copper electrode gets covered with bubbles of ammonia gas

IGCSE O Level Chemistry Exam Prep Tests

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A level Chemistry App (Android & iOS)