WorksheetsChemistry Quiz
Total questions: 20
Worksheet time: 10mins
Which is the smallest particle of an element ?
Molecule
Atom
Ions
None of these
What is interparticle sace for solid , liquid and gases ?
Solid - compartively very large
Liquid - less more than solids
Gases - minimum
Solid - minimum
Liquid - slightly more than solids
Gases - compartively very large
What is Melting ?
the process by which a gases changes to a solid
the process by which a gases changes to a liquid
the process by which a liquid changes to a solid
the process by which a solid changes to a liquid
What happens in Liquefaction ?
Particles - lose energy
Inter-particle space - decrease gently
Inter-particle attraction - increase
All of these
Who was the name of french chemist that introduced about law of conservation of mass ?
(a)
What is the another name of Liquefaction ?
(a)
Energy can neither be _____ nor ______ .
(a)
Which one is Impure substance ?
Mixture
Element
Compound
Which is an element ?
H2O
Nacl
AgNo3
H
What is the symbol for -:
(i) Atomic Number
(ii) Mass Number
(i) Z
(ii) A
(i) A
(ii) Z
(i) N
(ii) T
What is the symbol for Platinum ?
Pl
Pt
Pm
Pu
What is the symbol of Gold ?
Au
Gd
Gl
What is the formula of Silver Nitrate ?
AgNO3
AuNO₄
AnNO
Formula for Calcium oxide
(a)
What are diatomic molecules ?
They are made up of three atoms
They are made up of single atoms
They are made up of two atoms
They are made up of more than three atoms
Which constituents uniformly are mixed ?
Homogenous
Mixture
Heterogenous
Mixture
Which is homogenous mixture ?
(a) Salt and water
(b) Oil and Water
a is homogenous mixture
b is heterogenous mixture
a is heterogenous mixture
b is homogenous mixture
Both a and b
Which process changes from solid to gas without passing through liquid state ?
Evaporation
Condensation
Sublimation
Liquefaction
Which has postive charge ?
Nucleus
Electron
Neutron
Proton
Which has negative charge ?
Orbit
Electron
Proton
Nucleus
