Class 9 Science Sample Paper Set C

Please refer to the Class 9 Science Sample Paper Set B with answers below which has been designed as per the latest guidelines issued by CBSE, NCERT and KVS. CBSE has updated the paper pattern for this year. Following Sample Paper for Class 9 with answers has been designed to help students practice and get good marks in standard 9 science exams. It is important for students in Class 9 to understand the type of questions expected to come in exams. As many of the questions are multiple choice questions, we have also provided MCQ Questions for Class 9 Science covering all chapters.

Class 9 Science Sample Paper

Practice the questions below in the below Class 9 Sample Paper with Solutions and get good marks.

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Class 9 Science Sample Paper Set A

Class 9 Science Sample Paper Set B

Class 9 Science Sample Paper Set C

Question. A student mistakenly used a wet gas jar to collect sulphur dioxide. Which one of the following tests of the gas is likely to fail?
(a) Odour
(b) Effect on acidified K₂Cr₂O₇ solution
(c) Solubility test
(d) None of these 

Question. Tricuspid valve is present in ?
(a) Right atrium and right ventricle
(b) Left atria and left ventricle
(c) Wall of atrium
(d) Wall of ventricle 

Question. The shape of guard cells changes due to change in the
(a) Protein composition of cells
(b) Temperature of cells
(c) Amount of water in cells
(d) Position of nucleus in the cells 

Question. Which of the following statements is/are correct for aqua regia?
1. It is a freshly prepared mixture of concentrated hydrochloric acid and concentrated nitric acid.
2. Hydrochloric acid and nitric acid are in ratio 2:1 3. It can dissolve gold.
(a) 1 and 2
(b) 2 and 3
(c) 1 and 3
(d) 1, 2 and 3

Question. Which of the following are correctly matched for the concave mirror? 

Choose the correct option from the codes given below :
(a) 1, 3, 4
(b) 2, 3, 4
(c) 1, 2, 3
(d) 1, 2, 3, 4 

Question. Assertion : Large concave mirrors are used to concentrate sunlight to produce heat in solar cookers.
Reason : Concave mirror converges the light rays falling on it to a point.
(a) Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
(b) Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
(c) Assertion is true but Reason is false.
(d) Both Assertion and Reason are false. 

Question. If the rays constituting the beam actually meet at a point or appear to meet at a point, then the beam is: 
(a) divergent
(b) convergent
(c) parallel
(d) equal 

Question. What happens when dilute hydrochloric acid is added to iron fillings?
(a) Hydrogen gas and iron chloride are produced.
(b) Chlorine gas and iron hydroxide are produced.
(c) No reaction takes place.
(d) Iron salt and water are produced. 

Question. The ability of metals to be drawn into thin wire is known as 
(a) Ductility
(b) Malleability
(c) Sonority
(d) Conductivity 

Question. The colour of blood plasma is:
(a) Red
(b) Pale yellow
(c) Yellowish green
(d) Pink 

Question. To protect tooth decay we are advised to brush our teeth regularly. The nature of the toothpaste commonly used is
(a) acidic
(b) neutral
(c) basic
(d) corrosive 

Question. When acid and base is mixed together than which ofthe following is formed?
(a) Salt
(b) Base
(c) Acid
(d) Hydrogen 

Question. You are having five solutions P,Q,R, S and T with  pH values as follows:
P = 1.8, Q = 7, R = 8.5, S = 8 and T = 5
Which solution would be most likely to liberate hydrogen with magnesium powder?
(a) Solution P and Q
(b) Solution P
(c) Solution R
(d) All of the above 

Question. Which of the following are correctly matched? 

(a) 1 and 2
(b) 2 and 3
(c) 1 and 3
(d) 1, 2 and 3 

Question. In photosynthesis, which substances are used up, which are produced and which are necessary, but remain unchanged after the reaction?

Question. Organism who break down the food outside their body are
(a) Fungi
(b) Virus
(c) Tape worm
(d) None of the above 

Question. The number of chambers in a human heart is ………. .
(a) 3
(b) 2
(c) 4
(d) 5 

Question. A lens of focal power 0.5 D is:
(a) A convex lens of focal length 0.5 m
(b) A concave lens of focal length 0.5 m
(c) A convex lens of focal length 2 m
(d) A concave lens of focal length 2 m 

Question. Parallel rays from a distant object incident on a convex lens form an image on the screen. The diagram showing correctly the image of the object on the screen in figure is :

Question. Light appears to travel in a straight line, because
(a) frequency of light is very small
(b) wavelength of light is very small
(c) light consists of very small particles
(d) velocity is different for different colours 

Question. In a convex mirror, focus (F) and centre of curvature (C) of the mirror lie
(a) behind the mirror
(b) in front of the mirror
(c) on the mirror
(d) nothing can be decided  

Question. Which one of the following pair is correct? 

Question. Which of the following is the factor of influence the corrosion?
(a) Reactivity of metals
(b) Presence of impunities
(c) Strain in the metal
(d) All of the above 

Question. Assertion : Respiration is not a biochemical process opposite to photosynthesis.
Reason : Energy is released during respiration.
(a) Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
(b) Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
(c) Assertion is true but Reason is false.
(d) Assertion is false but Reason is true.

Question. If two lenses of power 2 D and 3 D are kept in contact with each other, then focal length of the combination will be
(a) 5 cm
(b) 10 cm
(c) 20 cm
(d) 40 cm 

Question. Consider the following statements about dispersion by glass prism :
1. Splitting of light into its component colours is called dispersion.
2. Issac Newton was the first to observe dispersion.
Choose the correct option from the codes given below:
(a) Only 1
(b) Only 2
(c) Both 1 and 2
(d) Neither 1 nor 2 

Question. pH of different solution are given in the table below   

Arrange the above solution in the increasing order of
OH− ion concentration.
(a) D<  C <  B < A
(b) A < C <  D <  B
(c) C < D <  B <  A
(d) B < D <  C <  A 

Question. In multi-cellular organisms, various body parts have specialized in the functions they perform with the help of:
(a) Specialized cells
(b) Multiple organs
(c) Multiple structure
(d) Specialized tissues 

Question. The projection lens of a projector has focal length 5 cm. It is desired to get an image with a magnification 30. The distance of the screen from the lens must be
(a) 0.3 m
(b) 0.8 m
(c) 1.55 m
(d) 2.55 m 

Question. In an experiment of pH paper four students takes the following observation?

Which student takes the incorrect observation?
(a) B
(b) C
(c) D
(d) A

Question. Hard water is not available for an experiment in the school and its vicinity. However, some salts as given below are available in the school laboratory.
1. Sodium Chloride 
2. Sodium Sulphate
3. Calcium Chloride
4. Calcium Sulphate
5. Potassium Chloride
6. Magnesium Sulphate
Select form the following a group of these salts, each member of which may be dissolved in water to make it hard.
(a) 1, 2, 5
(b) 1, 3, 5
(c) 3, 4, 6
(d) 2, 4, 6 

Question. When dilute hydrochloric acid is added to a reactive metal ………. gas is evolved.
(a) Hydrogen
(b) Argon
(c) Helium
(d) Nitrogen 

Question. What happens if a person has one kidney removed?
(a) They will accumulate excess urea
(b) They will die
(c) They will continue as normal
(d) They will stop making urine 

Question. Rusting of iron can be prevented by:
1. Painting
2. Galvanisation
3. Electrolytic refining
4. Alloying
Which of the above are correct?
(a) 1, 2 and 3
(b) 1, 2 and 4
(c) 2, 3 and 4
(d) 1, 2, 3 and 4 

Question. Assertion : Electrical wires can be made by copper.
Reason : Copper is a good conductor of electricity.
(a) Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
(b) Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
(c) Assertion is true but Reason is false. 
(d) Assertion is false but Reason is true.

Question. An object of size 7.0 cm is placed at 27 cm in front of a concave mirror of focal length 18 cm. At what distance from the mirror should a screen be placed, so that a sharp focussed image can be obtained?
(a) 54 cm
(b) 60 cm
(c) −54 cm
(d) −60 cm 

Question. Which of the following graphs shows correct variation between the power (P) of a converging lens and its focal length (f )? 

Question. Which of the following lenses would you prefer to use while reading small letters found in a dictionary?
(a) A convex lens of focal length 50 cm.
(b) A convex lens of focal length 50 cm.
(c) A convex lens of focal length 5 cm.
(d) A concave lens of focal length 5 cm. 

Question. When light enters from air to glass, the angles of incidence and refraction in air and glass are 45° and 30° respectively. The refractive index of glass is(Given that sin 45°  = 1/√2, sin30° = 1/2 )
(a) 1.90
(b) 1.41
(c) 1.20
(d) 1.55 

Question. One light wave is incident upon a plate of refracting index μ . Incident angle i , for which refractive and reflective waves are mutually perpendicular will be
(a) i = 45º
(b) i = sin⁻¹(μ )
(c) i = cosec⁻¹(μ )
(d) i = tan⁻¹(μ ) 

Question. Melting of iron occurs at ………. temperature than sulphur.
(a) Lower
(b) Higher
(c) Equal
(d) None of the above 

Question. Which of the following is not a acid?
(a) KOH
(b) HNO₃
(c) HCl
(d) H₂SO₄ 

Question. A dilute solution of sodium carbonate was added to two test tubes – one containing dil HCl (A) and the other containing dilute NaOH(B). Which of the following was the correct observation?
(a) A brown coloured gas liberated in test tube A.
(b) A brown coloured gas liberated in test tube B.
(c) A colourless gas liberated in test tube A.
(d) A colourless gas liberated in test tube B.

Question. Arteries are the vessels which carry blood away from the
(a) Various body parts to the heart
(b) Heart to various organs of the body
(c) Heart to lungs
(d) Lungs to heart 

Question. Assertion : Carbon dioxide turns lime water milky.
Reason : Carbon dioxide sullies the water.
(a) Both Assertion and Reason are True and Reason is the correct explanation of the Assertion.
(b) Both Assertion and Reason are True but Reason is not the Correct explanation of the Assertion.
(c) Assertion is True but the Reason is False.
(d) Both Assertion and Reason are False. 

Question. If a glass rod is immersed in a liquid of the same refractive index, then it will
(a) disappear
(b) look bent
(c) look longer
(d) look shorter 

Question. What type of tissue is blood?
(a) muscle tissue
(b) nervous tissue
(c) fluid connective tissue
(d) epithelial tissue 

Question. Which of the following salts does not contain water of crystallization?
(a) Blue vitriol
(b) Baking soda
(c) Washing soda
(d) Gypsum 

Case Based Questions

For making baking powder, which is a mixture of baking soda (sodium hydrogen carbonate) and a mild edible acid such as tartaric acid. When baking powder is heated or mixed in water,  the following reaction takes place: NaHCO₃+ H⁺→ CO₂ +H₂O + Sodium salt of acid Carbon dioxide produced during the reaction causes bread or cake to rise making  them soft and spongy. Sodium hydrogen carbonate is also an ingredient in antacids. Being alkaline, it neutralises excess acid in the stomach and provides relief. It is also used in soda-acid fire extinguishers 

Question. ………. is the chemical name of baking soda.
(a) Calcium hydrogen carbonate
(b) Sodium hydrogen carbonate
(c) Calcium carbonate  
(d) Sodium carbonate 

Question. Baking powder is a mixture of the following compounds:
(a) Bleaching powder and citric acid
(b) Baking soda and oxalic acid
(c) Washing soda and citric acid
(d) Baking soda and tartaric acid 

Question. Which of the following compound is used in soda-acid fire extinguishers?
(a) Plaster of Paris
(b) Baking soda
(c) Washing soda
(d) Bleaching powder 

Question. Which ingredient is used in anti-acids which gives relief in stomach by neutralising excess acid?
(a) Magnesium hydroxide
(b) Sodium carbonate
(c) Aluminium hydroxide
(d) Sodium hydrogen carbonate 

Case Based Questions

The length of the small intestine differs in various animals depending on the food they eat. Herbivores eating grass need a longer small intestine to allow the cellulose to be digested. Meat is easier to digest, hence carnivores like tigers have a shorter small intestine. The small intestine is the site of the complete digestion of carbohydrates, proteins and fats. It receives the secretions of the liver and pancreas for this purpose. The food coming from the stomach is acidic and has to be made alkaline for the pancreatic enzymes to act. Bile juice from the liver accomplishes this in addition to acting on fats. Fats are present in the intestine in the form of large globules which makes it difficult for enzymes to act on them. Bile salts break them down into smaller globules increasing the efficiency of  enzyme action.

Question. The small intestine is the site of the complete digestion of:
(a) Carbohydrates
(b) Proteins
(c) Fats
(d) All of these 

Question. Why herbivores have longer small intestine?
(a) To digest fats
(b) To digest proteins
(c) To digest cellulose
(d) To digest carbohydrates 

Question. Which category of animals have shorter small intestine?
(a) Carnivores
(b) Omnivores
(c) Herbivores
(d) Decomposers 

Question. What is the nature of food in the stomach and what is done for the pancreatic enzymes to act?
(a) Acidic, made more acidic
(b) Alkaline, made acidic
(c) Acidic, made alkaline
(d) Alkaline, made more alkaline 

Case Based Questions

Newton found that when a beam of white light passes through a prism it is spread out by the prism into a band of all the colours of the rainbow from red to violet. The band of colours is called a spectrum and the separation of the colours by the prism is known as dispersion. He concluded that white light is a mixture of light of various colours and identified red, orange, yellow, green, blue, indigo and violet. All colours of light travel at the same speed in a vacuum . When they enter a transparent substance like glass, they all slow down but by different amounts. Because they slow down, they are refracted but because they slow down by different amounts, different colours are refracted through different angles. 

Question. Which of the following statements is correct regarding the propagation of light of different colours of white light in air?
(a) Red light moves fastest.
(b) Blue light travels faster than green light.
(c) All colours of white light move with the same speed.
(d) Yellow light moves with the mean speed as that of red and violet lights. 

Question. Splitting of white light into seven colours on passing through a glass prism is called
(a) scattering
(b) refraction
(c) dispersion
(d) reflection 

Question. Rainbow is formed due to
(a) diffraction and dispersion
(b) reflection only
(c) scattering and refraction
(d) total internal reflection and dispersion 

Question. A ray of light passes through a prism as shown in figure

The angle δ is known as
(a) angle of emergence
(b) angle of dispersion
(c) angle of prism
(d) angle of deviation