Question

vii: Metal carbonates react with acid to form
a: Salt, carboxylic acid and water
b: Salt and carbonated water
c: Salt, carbon dioxide and water
viii: Calcium carbonate + sulphuric acid →
a: Calcium hydroxide, carbon dioxide and water
b: Calcium sulphate and hydrogen
c: Calcium sulphate, carbon dioxide and water
ix: The two tests for carbon dioxide are
a: It will extinguish a lit splint
b: It will cause a squeaky pop
c: When bubbled through lime water it turns the water cloudy
x: Metal oxide + acid →
a: Salt and water
6: Salt and hydrogen
c: Salt, carbon dioxide and water
xi: According to the pH scale, indicator will turn red if a solution is
a: Acidic
b: Alkali
c: Neutral
xii: A glowing splint placed in oxygen gas will
a: Get wet
b: Relight
c: Cause a squeaky pop
xiii: Copper oxide + hydrochloric acid →
a: Copper chloride and water
b: Copper hydroxide and chlorine
c: Copper chloride and hydrogen
xiv: Hydrochloric acid + sodium hydroxide → sodium chloride + water
a: This reaction is a neutralisation reaction
b: This reaction is a combustion reaction
c: This reaction is an oxidation reaction
XV: As more alkali is added to a neutral solution, it turns more
a: neutral
b: alkali
c: acidic​

Answer 1

vii) c

viii) c

ix) c

x) a

xi) a

xii) b

xiii) a

xiv) a

xv) c