WorksheetsONLINE QUIZ on ACIDS, BASES AND SALTS by PRABHAKAR MIRIYALA
Total questions: 25
Worksheet time: 14mins
What is the colour of methyl orange in acid ?
Red
Yellow
Orange
Colour less
What is the colour of phenolphthalein in a base ?
Pink
Blue
Red
Colourless
What is the colour of methyl orange in a base ?
Pink
Blue
Yellow
Colourless
What is the colour of phenolphthalein in acid?
Pink
Yellow
Orange
Colourless
Name the gas formed when zinc reacts with hydrochloric acid.
Nitrogen
Hydrogen
Oxygen
Carbon dioxide
What is the colour of litmus in neutral?
Pink
Orange
Yellow
Purple
What observation made in test tube B?
It forms a white precipitate
No change
It turns to red
It turns pink
Give another name for lime water.
Potassium oxide
Sodium hydroxide solution
Calcium oxide
Calcium hydroxide solution
From the below options, which one is not an olfactory indicator?
onion
Lichen
Clove oil
vanilla
------- + base ----------> salt + water
NaoH
Metal oxide
Non metal oxide
all the above
Which type of solution is A and B respectively?
Basic and acidic
Acidic and basic
Basic and neutral
Acidic and neutral
How can you test to show that when a metal reacts with acid, hydrogen gas is produced?
it turns lime water milky white
it puts off the lighted match stick with pop sound
it burns the match stick
It is cold to touch
olfactory indicators change their ---- in acidic and basic media.
colour
odour
taste
none of the above
The base that dissolve in water is known as
Acidic
Alkali
amphoteric
Basic
Non metal oxides are ----- in nature
neutral
acidic
basic
both acidic and basic
metal oxides are .... in nature
neutral
acidic
basic
both acidic and basic
----------- + acid --------> salt + water
Acid
metal oxide
non metal oxide
H2SO4
The nature of substance present in antacid tablet is ......
acidic
basic
neutral
both acidic and basic
The acidity of acids is attributed to the ----- produced by them in solutions.
OH- ions
H+ ions
salts
both H+ and OH- ions
Litmus solution is a dye extracted from ........ plant
Lichen
Litmus
petunia
Hydrangea
On dissolving bases in water produces ------ ions
hydeogen ions
hydronium ions
hydroxide ions
none of the above
which of the following is hydronium ion
H+
OH-
H3O+
all the above
Glucose solution does not act as acid because
it does not produce H+ ions
it produce more number H+ ions
it produce equal number of H+ and OH- ions
it is a salt solution
