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Matter in Our Surroundings Class 9 mcq with Answers. We covered all the Matter in Our Surroundings Class 9 mcq with Answers in this post for free so that you can practice well for the exam.
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mcq on Matter in Our Surroundings for Class 9 Students
A mixture of sulphur and carbon disulphide is best described as
a) A heterogeneous mixture that exhibits the Tyndall effect
b) A homogeneous mixture that exhibits the Tyndall effect
c) A heterogeneous mixture that does not show the Tyndall effect
d) A homogeneous mixture that does not show the Tyndall effect
Option d – A homogeneous mixture that does not show the Tyndall effect
Which statement about graphite is incorrect?
a) Each carbon Atom in graphite is sp³ hybridised
b) Each carbon Atom is sp² hybridised
c) The electrons are delocalised across the sheet of carbon atoms
d) Each layer consists of hexagonal arrangements
Option a – Each carbon Atom in graphite is sp³ hybridised
Identify the purest form of carbon among the following
a) Charcoal
b) Coke
c) Fullerene
d) Carbon black
Option c – Fullerene
Carbon monoxide is toxic because
a) It does not dissolve in water
b) It binds strongly with haemoglobin
c) It reduces certain metal oxides
d) It contains a single sigma bond
Option b – It binds strongly with haemoglobin
If the atomic Mass of barium is 137.3, what is the equivalent weight of barium hydroxide?
a) 85.7
b) 137.3
c) 154.3
d) 171.3
Option a – 85.7
Which technique is used to separate very fine insoluble particles from a liquid?
a) Crystallization
b) Fractional distillation
c) Centrifugation
d) Decantation
Option d – Decantation
Which of the following carbon structures has a cage-like formation?
a) Diamond
b) Graphite
c) Fullerenes
d) Diamond, Graphite, and Fullerenes
Option c – Fullerenes
An emulsion is a colloidal mixture of
a) Substances in different physical states
b) True solutions
c) Mixtures used in Alcohol production
d) Two immiscible liquids
Option d – Two immiscible liquids
Evaluate the following statements: A. Mass remains unchanged by temperature and pressure B. Plasma is made up of ionised gases C. Alloys are homogeneous mixtures D. A solution is heterogeneous Which combination is correct?
a) A, B and C
b) B and C
c) A, C and D
d) A and D
Option a – A, B and C
What is the Mass percentage of Salt if 20 g of Salt is dissolved in 180 g of water?
a) 5%
b) 9%
c) 10%
d) 15%
Option c – 10%
What type of element is radon?
a) Noble gas
b) Synthetic fibre
c) Explosive
d) Metallic element
Option a – Noble gas
The material used in pencil leads is
a) Zinc
b) Lead
c) Graphite (a form of carbon)
d) Tin
Option c – Graphite (a form of carbon)
When boiling pure water, what do the rising bubbles mainly consist of?
a) Air
b) Hydrogen
c) A mix of hydrogen and oxygen
d) Water vapour
Option d – Water vapour
Why does water boil at a lower temperature in mountainous regions?
a) Due to lower atmospheric pressure
b) Because external temperature is low
c) Because latent Heat is reduced
d) None of the above
Option a – Due to lower atmospheric pressure
Which gas ranks second in atmospheric abundance?
a) Oxygen
b) Hydrogen
c) Nitrogen
d) Carbon dioxide
Option a – Oxygen
Which of the following statements is false?
a) Buckminsterfullerene is a carbon allotrope
b) Diamond conducts Electricity
c) Graphite is electrically conductive
d) In graphite, each carbon is bonded to three others
Option b – Diamond conducts Electricity
What is the everyday name for solidified carbon dioxide?
a) Potash
b) Quick Silver
c) Epsom
d) Dry Ice
Option d – Dry Ice
Methane is often referred to by what common name?
a) Blue vitriol
b) Laughing gas
c) Heating gas
d) Marsh gas
Option d – Marsh gas
Substances like camphor, dry ice, and naphthalene vanish over time when exposed to air. What is this process called?
a) Sublimation
b) Evaporation
c) Diffusion
d) Radiation
Option a – Sublimation
How do you separate two miscible liquids in a uniform mixture?
a) Filtration
b) Evaporation
c) Distillation
d) Condensation
Option c – Distillation
Which non-toxic gas assists in enzyme production that ripens fruits?
a) Acetylene
b) Ethane
c) Methane
d) Carbon dioxide
Option a – Acetylene
Granite is mainly composed of
a) Iron and silica
b) Iron and silver
c) Silica and aluminium
d) Iron oxide and potassium
Option c – Silica and aluminium
What are the main components of water gas?
a) Carbon monoxide and hydrogen
b) Carbon dioxide and hydrogen
c) Carbon monoxide and methane
d) Carbon dioxide and methane
Option a – Carbon monoxide and hydrogen
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