Font size
WorksheetsThe Role of Water to Show Acidity and Alkalinity
Total questions: 10
Worksheet time: 5mins
The color of litmus in acid:
Red
Blue
Purple
Green
The color of litmus in alkali:
Red
Blue
Purple
Green
Which type of ion does an acid produce when it is dissolved in water?
oxide
oxygen
hydroxonium
hydroxide
When an acid is dissolved in water, acid molecules will ionise to produce hydrogen ions, H+
TRUE
FALSE
Without water, solid oxalic acid, C2H2O4 only exist as molecules. ______________ are not present.
hydroxide ions, OH–
Hydrogen ions, H+
When a pellet of sodium hydroxide, NaOH is dissolved in water, __________________ are produced and able to move freely in water.
hydroxide ions, OH–
hydrogen ions, H+
The presence of water also enables ammonia gas, NH3 to ionise and produce hydroxide ions, OH– that are responsible for its ____________ properties.
acidic
alkaline
neutral
Acids has ____________ taste.
bitter
sour
no
Alkalis react with metal and produce hydrogen gas.
Yes
No
