sample paper for practice class 10th

SCIENCE

SAMPLE PAPER                BLUEPRINT                                    CLASS X

Name of the chapter	MCQ (1Mark)	VSA (1Mark)	Assertion and reasoning (1Mark)	3 Mark questions	5 Mark questions	TOTAL(MARKS)
Chemical reactions and equations	2(1)	1(1)		1(3)		6
Acids Bases and salts	1(1)	1(1)	1(1)		1(5)	8
Metals and non metals				1(3)	1(5)	8
Periodic classification of elements(Till Mendeleev’s periodic classification)				1(3)		3
Life processes	1(1)			2(3)	1(5)	12
Control and coordination		3(1)			1(5)	8
How do organisms reproduce(Till asexual reproduction)	2(1)	1(1)	1(1)	1(3)		7
Electricity	3(1)	1(1)		1(3)	1(5)	12
Magnetic effects of electric current			1(1)	3(3)		10
Light(Till reflection)	1(1)				1(5)	6
Total	10(1)	7(1)	3(1)	10(3)	6(5)	80

 SAMPLE PAPER

TERM1

                                                                            Class X                                                              M.M. 80

GENERAL INSTRUCTIONS

1. The question paper consists of three sections A,B , C containing 36 questions 
2. All questions are compulsory.
3. Question No.1 to 10 are MCQ’s .These carry 1 mark each.
4. Question No.11 to 17are one mark question .These are VSA’s to be answered in one word or sentence.
5. Question No.18 to 20 are one mark questions . These are reasoning and assertion questions.
6. Question No.21 to 30 are 3 mark question . These are to be answered in about 50 words.
7. Question No.31 to 36 are 5 mark question. These are to be answered in about 70 words. 

Section A

Q1 Samples A , B,C,D were found to have pH 2,9,6,7 respectively . Correct order of increasing acidic strength is 

1. A, B, C, D ii) B, C,A,D

iii) B,D,C,A iv) A,C,D,B

Q2 When ferrous sulphate is heated in a dry test tube ,the two observations are 

1. White solid and foul smell 
2. Red solid and foul smell
3. Yellow solid and brown fumes 
4. Red solid and brown fumes 

Q3 Asexual mode of reproduction shown by plasmodium is : 

1. Binary fission ii) Fragmentation

iii) Budding iv) Multiple fission 

Q4 Structure that regulates opening and closing of stomatal pores 

1. Chloroplast ii) Epidermal cell

iii) Guard cell iv) Phloem

Q5 Four identical cells of 1.5 V each were connected in four different ways as shown .The potential difference between the points X and Y would equal to 6V in case/cases:

1. A and B ii) A and C 

iii) A and D iv) A only.

Q6 The V-I graphs of three resistors P, Q and R are as shown in figure . Which resistor has maximum resistance?

1. P

ii) Q

iii) R

iv) All have equal resistance

Q7 Fatty foods become rancid due to the process of 

2. Oxidation ii) Corrosion

iii) Reduction iv) Hydrogenation

Q8 Vegetative propagation is important for plants that 

1. Produce healthy and viable seeds
2. Do not possess desirable characteristic 
3. Do not produce healthy and viable seeds 
4. Need variation in characteristics

Q9 In the given electrical circuit , the potential difference across 4Ω resistor is __________

1. 4V
2. 2V
3. 6V 
4. 8V

Q10 If the magnification has a negative sign , the image formed by concave mirror must be :

1. Real and erect ii) Virtual and inverted 

iii) Virtual and erect iv) Real and inverted

Q11 How pH value will change when fresh milk is changed into curd ?

Q12 The electrolytic decomposition of water gives H2 and O2 in the ratio of ____________ by volume .

Q13 How are bulbs connected in a fairy light circuit used for decoration of buildings in festivals ?

Q14 Posture and balance of the body is maintained by _______________ .

Q15 A potted plant is made to lie horizontally on the ground. Which part of the plant will show 

1. Positive  geotropism ii) negative geotropism

Q16 Name the hormone that causes tendril to encircle or coil around the object in contact with it .

Q17 Bryophyllum  reproduces asexually through formation of buds .(True/False)

For Q 18, 19  and 20 . Choose the correct option.

I. If both Assertion and Reason are true and the reason is the correct explanation of the Assertion.

II. If both Assertion and Reason are true but the reason is not correct explanation of the Assertion.

III.If the Assertion is true but reason is false.

IV. If the Assertion and Reason both are false.

V.If Assertion is false but Reason is true.

Q18 Assertion – Magnetic fields interacts with a  moving charge and not with a stationary charge .

Reason – A moving charge produces a magnetic field .

Q19 Assertion  - Carbondioxide reacts wih aqeous sodium hydroxide to form sodium carbonate 

Reason – Acid neutralises base to form salt .

Q20 Assertion -  Amoeba reproduces by fission 

Reason  – All unicellular organisms reproduce by asexual methods.

SECTION B

Q21 An electron enters a magnetic field at right angle to it as shown in the figure . In which direction will this electron move ?State the principle applied by you in finding the direction of motion of the electron.

Q22 i) Draw  a closed circuit diagram consisting of a 0.5m long nichrome wire XY, an ammeter ,a  voltmeter, four cells of 1.5 V each and a plug key.

2. State Joule’s law of heating .

OR

Calculate the electric current in the given circuit when 

1. Key K1 is open and K2 is closed.
2. Both keys are closed
3. K1 is closed and K2 is open.

Q23 Draw a neat diagram of human excretory system and label the following :

1. Organ which helps in filteration 
2. Organ which transports urine from kidneys to bladder
3. Organ through which urine is expelled out of the human body 

OR

Write three events that occur during photosynthesis .

Q24 i) Identify the type of reaction taking place in the following equations :

1.       CH4  + 2O2              CO2 + 2 H2O b) Pb(NO3)2 + 2KI          PbI2 +2KNO3

c) CaO + H2O            Ca (OH)2 d) `CaSO 4 +Zn           ZnSO4 + Cu

ii) Identify the reducing agent in the following reactions :

1. 4NH3 + 5O2             4NO + 6 H2O b) Fe2O3 + 3CO           2Fe + 3CO2

Q25 A metal ‘A’ used in thermit reaction when heated with oxygen gives an oxide ‘B’ which is amphoteric in nature .Identify A and B .Write down the reaction of oxide B with HCl and NaOH.

Q26 What do you mean by Emulsification of fats ? Name the enzyme that helps in the digestion of fats .Also name the end products formed during this process.

Q27 Why is DNA copying an essential part of the process of  reproduction .Write two advantages of sexual reproduction over asexual reproduction .

Q28 i) Draw the magnetic field lines through and around a single loop of wire carrying electric current .

2. How does the strength of magnetic field at the centre of circular coil of wire depend on 

1. Radius of the coil b) Number of turns of the wire in the coil

Q29 What happens to the deflection of compass needle placed at a point near a current carrying straight conductor

1. If the current is increased
2. If the direction of current in the conductor is reversed 
3. If compass needle is moved away from the conductor 

Q30 i) State Dobereiner’s law of Triads.

              ii)           Give two merits and two demerits of Mendeleev’s periodic classification .

SECTION C

Q31       i)     A coin appears to be raised when placed at the bottom of container when water is poured in it without disturbing the coin. Explain it with the help of ray diagram .

             ii)            Refractive index of some medium are given below :

Crown  Glass                   1.52

Water                                1.33

Sapphire                           1.77

1. How does the speed of light change when it goes from crown glass to water ?
2. In which of the given medium the speed is maximum and minimum?
3. Calculate the speed of light in sapphire.

OR

1. A 5cm tall object is placedon the principal axis of convex lens of focal length 20cm. The distance of object from lens is 30cm. Find the position , nature and size of the image formed .
2. Draw the ray diagram formed by a lens when image is Virtual , erect and enlarged .and also name the type of lens.

Q32 i) An electric geyser rated 1500W , 250Vis connected to a 250V line mains .Calculate 

1. Electric current drawn by it
2. Energy consumed by it in 50 hours
3. Cost of energy consumed if each unit costs  6 rupees.

ii) Define commercial unit of energy and establish a relationship between commercial and SI unit of electrical energy .

Q33       i) How do you classify elements into metals and non-metals on the basis of their electronic           configuration .Choose metal and non-metal out of the following:

              1224A, 919B, 1123C,  1531D, 1735E

ii) What type of bond will be formed if A combines with B .Write the formula of the compound.

3. Mention three properties of the compound formed above.

OR 

Given below are the steps for extraction of copper from its ore . Write the reactions involved.

1. Roasting of copper (I) sulphide
2. Reduction of copper (I) oxide with copper (I) sulphide.
3. Explain its electrolytic refining with the help of well labelled diagram.

Q34 State reason for the following statements:

1. Tap water conducts electricity whereas distilled water does not.
2. Dry hydrogen chloride gas has no effect on Blue litmus whereas dilute hydrochloric acid has.
3. Tartaric acid added into baking soda to get baking powder.
4. Curd should not be kept in copper or brass vessels.
5. Stain of curry on a white cloth becomes reddish brown when soap is scrubbed on it and turns yellow again when cloth is washed with plenty of water.

OR

1. The oxide of element ‘M’ was water soluble when blue litmus was dipped in this solution , it remained unchanged .Predict the nature of element ‘M’ and its oxide.
2. What is the correct method of diluting an acid and why ?
3. An aqueous solution of sodium chloride is neutral but an aqueous solution sodium carbonate is basic. Justify.

Q35 i) Schematically show the breakdown of glucose by various pathways.

ii) Why do the aquatic organisms have a faster breathing rate as compared to the terrestrial organisms 

Q36 i) How does our body respond when adrenaline is secreted into the blood.

ii) Name the hormones responsible for regulation of 

3. Metabolism of carbohydrates , fats and proteins 
4. Changes during puberty in males.
5. Growth of human beings
6. Sugar level in blood 

OR

1. Draw a diagram of human brain and label :

1. Cerebrum b) Pons

c)  Cranium d) Pituitary gland 

ii) Name the master gland associated with the working of Endocrine systems in humans.

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