Acids with which metal makes the reaction slow?
potassium
magnesium
Iron
calcium
Which adds flavour to certain foods and is also used as a food preservative?
vinegar
Sauze
Asafoetida
tamrind
Who suggested that acids contain special particles that squeeze into the gaps in the metal, breaking them apart?
Henry Cavendish
Robert Boyle
Svante Arrhenius
Joseph Priestly
Which acid is present in apples?
Acetic
Oxalic
Malic
Uric
A measure of the acidity or alkalinity of a solution is called
PH
acidity
basicity
Turbidity
Which is used as a medicine to neutralise the effect of the acidity in stomach?
Sodium bicarbonate
Sodium carbonate
Calcium carbonate
Calcium chloride
Which reacts vigorously with acids and there is rapid evolution of hydrogen?
Magnesium
copper
silver
gold
Concentrated sulphuric acid can displace one from sodium chloride is
hydrochloric acid
hydrogen sulphide
Water
nitric acid
The hydrogen ions attach themselves to the water molecule and form __________.
hydroxide ion
chloride ion
hydronium ion
oxide ion
Acids which dissociate on dissolving in water to produce three hydrogen ion per molecule of the acid are
monobasic
dibasic
tribasic
polybasic