The following glasswares are used to measure the volume of liquids EXCEPT
graduated beaker
pipette
test tube
burette
Correct answer is C
Test tubes are convenient containers for heating small amounts of liquids or solids with a Bunsen burner or alcohol burner.
Which of the following species determines the chemical properties of an atom?
Electron
Neutron
Nucleus
Proton
Correct answer is A
An element's chemical properties depend on its valence electrons.The chemical properties of elements depend on an element's electron configuration.
Which of the following properties would not influence electrovalent bond formation?
Electronegativity
Electron Affinity
Ionization potential
Catalytic ability
Correct answer is D
Every other factor influences the formation of elecrovalent or Ionic bonds except Catalytic ability.
The solubility of CO2 in water can be accounted for by
Van der Waal's forces
Ionic attraction
dipole attraction
covalent bonding
Correct answer is A
In CO2, due to electronegativity difference oxygens have slight negative charge, hence surrounded by polar water molecule forming a cage structure.This leads to its solubility.