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 :
(a) heterogeneous and shows the Tyndall effect.
(b) homogeneous and shows the Tyndall effect
(c) heterogeneous and does not show the Tyndall effect
(d) homogeneous and does not show the Tyndall effect
Option d – homogeneous and does not show the Tyndall effect
Which one of the following properties is NOT true for graphite?
(a) Hybridisation of each carbon atom of sp³
(b) Hybridisation of each carbon atom is sp²
(c) Electrons are delocalized over the whole sheet of atoms
(d) Each layer is composed of hexagonal rings.
Option a – Hybridisation of each carbon atom of sp³
Which one of the following is the purest form of Carbon?
(a) Charcoal
(b) Coke
(c) Fullerene
(d) Carbon black
Option c – Fullerene
The Poisonous nature of Carbon monoxide (CO) is due to its
(a) insolubility in water
(b) ability to form a complex with haemoglobin
(c) ability to reduce some metal oxides
(d) property of having one sigma bond
Option b – ability to form a complex with haemoglobin
The equivalent weight of Ba (OH)2 is (given, the atomic weight of Ba is 137.3)
(a) 85.7
(b) 137.3
(c) 154.3
(d) 171.3
Option a – 85.7
Very small insoluble particles in liquid separated may be from it by using
(a) crystallization
(b) fractional distillation
(c) centrifugation
(d) decantation
Option d – decantation
Molecules which of the following has a cage-like structure ? 1. Diamond 2. Graphite 3. Fullerenes Select the correct below answer using the code given :
(a) 1, 2 and 3
(b) 2 and 3 only
(c) 2 only
(d) 3 only
Option d – 3 only
The emulsion is known as a colloidal solution of substances having different
(a) physical states
(b) true solutions
(c) distillation mixture for making alcohol
(d) colloidal solution of two liquids
Option d – colloidal solution of two liquids
Consider the following statements : (A) Mass is not affected by temperature and pressure. (B) Plasma contains ionised gases. (C) Alloys are homogeneous mixtures. (D) The solution is a heterogeneous mixture. Which of the above statements 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)
20 g of common salt is dissolved in 180 g of water. What is the mass percentage of the salt in the solution?
(a) 5%
(b) 9%
(c) 10%
(d) 15%
Option c – 10%
Radon is
(a) an inert gas
(b) an artificial fibre
(c) an explosive
(d) a metal
Option a – an inert gas
Which one of the following elements are used in pencil lead?
(a) Zinc
(b) Lead
(c) Carbon (Graphite)
(d) Tin
Option c – Carbon (Graphite)
when pure water boils vigorously, the bubbles that rise to the surface are composed primarily of
(a) air
(b) hydrogen
(c) hydrogen and oxygen
(d) water vapour
Option d – water vapour
Water boils at a lower temperature at high altitudes, because
(a) the air pressure is less
(b) the outside temperature is less
(c) latent heat is less
(d) None of the above
Option a – the air pressure is less
Which one of the following gases is placed second in respect of abundance in the Earth’s atmosphere?
(a) Oxygen
(b) Hydrogen
(c) Nitrogen
(d) Carbon dioxide
Option a – Oxygen
Which one of the following statements is NOT correct?
(a) Buckminsterfullerene is an allotrope of carbon
(b) Diamond is a good conductor of electricity
(c) Graphite is a good conductor of electricity
(d) In graphite, each carbon atom is linked to three other carbon atoms
Option b – Diamond is a good conductor of electricity
What is the more common name for solid carbon dioxide?
(a) Potash
(b) Quick Silver
(c) Epsom
(d) Dry Ice
Option d – Dry Ice
Methane is a colourless, odourless, non-toxic but flammable gas. What is its common name?
(a) Blue vitriol
(b) Laughing gas
(c) Heating gas
(d) Marsh gas
Option d – Marsh gas
A sample of any of the following substances disappears after some time when exposed to the air like camphor, naphthalene or dry ice. This phenomenon is called
(a) Sublimation
(b) Evaporation
(c) Diffusion
(d) Radiation
Option a – Sublimation
A homogeneous mixture contains two liquids. How are they separated?
(a) By filtration
(b) By evaporation
(c) By distillation
(d) By condensation
Option c – By distillation
Which one among the following nontoxic gases helps in the formation of enzymes which ripen fruit?
(a) Acetylene
(b) Ethane
(c) Methane
(d) Carbon dioxide
Option a – Acetylene
Which of the following are the two main constituents of granite?
(a) Iron and silica
(b) Iron and silver
(c) Silica and aluminium
(d) Iron oxide and potassium
Option c – Silica and aluminium
What does water gas comprise?
(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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