Two of the following four figures that illustrate budding are
- AI and II
- BI and IV
- CII and IV
- DI and III
Question types
MODEL PAPER - 10 [2026] question types
46 questions across 17 question groups — pick any mix to generate a Science paper with step-by-step answer keys.
46
Questions
17
Question groups
5
Question types
01
M.C.Q
8 Q→02M.C.Q-[Che-1M]
8 Q→03Assertion - Reasoning (1 Marks)
1 Q→04[2 Mark Questions]
4 Q→05Answer the questions.[Che-2M]
1 Q→06[3 Mark Questions]
2 Q→07Answer the questions.[Che-3M]
3 Q→08[5 marks Questions]
2 Q→09case /data -based [Che-4M]
2 Q→10case /data -based (4 Marks)
1 Q→11Answer the questions.[Che-5M]
2 Q→12M.C.Q-[Phy-1M]
2 Q→13Assertion - Reasoning [Phy-1 M]
1 Q→14Answer the questions.[Phy-2M]
3 Q→15Answer the questions.[Phy-3M]
3 Q→16case /data -based [Phy-4M]
1 Q→17Answer the questions.[Phy-5M]
2 Q→Sample Questions
MODEL PAPER - 10 [2026] questions
One sample from each question group in this chapter. Select any group above to see the full set with answer keys.
United Nations Environment Programme forged an agreement to
- Acontrol water pollution
- Breduce CFC production
- Ccontrol $\mathrm{CO}_{2}$ emissions in the environment
- Dconserve biodiversity
Opening and closing of stomata is due to
- ADiffusion of $\mathrm{CO}_{2}$ in and out of the guard cells.
- BHigh pressure of gases inside the cells.
- CStimulus of light in the guard cells.
- DMovement of water in and out of the guard cells.
Which one of the following is not a natural ecosystem?
- ACropland ecosystem
- BForest ecosystem
- CGrassland ecosystem
- DPond ecosystem
Progesterone and relaxin bring about changes in the body of a
- AOld woman
- BPregnant woman
- CYoung girl
- DTeenaged girl
Which of the given statement is correct or wrong:
Statement A: Detergent with less branching in the molecule is degraded more easily than branched-chain detergents.
Statement B: Soaps are 100% biodegradable.
Statement A: Detergent with less branching in the molecule is degraded more easily than branched-chain detergents.
Statement B: Soaps are 100% biodegradable.
- ✓Both the statements A and B are true.
- BNeither statement A nor statement B is true.
- CStatement B is true; Statement A is false.
- DStatement A is true; Statement B is false.
Answer: A.
View full solution →Reaction between X and Y , forms compound Z . X loses electron and Y gains electron. Which of the following properties is not shown by Z ?
- AHas high melting point
- ✓Has low melting point
- COccurs as solid
- DConducts electricity in molten state
Answer: B.
View full solution →If 10 mL of $\mathrm{H}_{2} \mathrm{SO}_{4}$ is mixed with 10 mL of $\mathrm{Mg}(\mathrm{OH})_{2}$ of the same concentration, the resultant solution will give the following colour with universal indicator:
- AYellow
- BRed
- CBlue
- ✓Green
Answer: D.
View full solution →The number of shells required to write the electronic configuration of Potassium (At. No. 19)
- A1
- B2
- ✓4
- D3
Answer: C.
View full solution →A student adds one big iron nail each in four test tubes containing solution of zinc sulphate, aluminium sulphate. copper sulphate and iron sulphate. A reddish brown coating was observed only on the surface of iron nail which was added in the solution of:
- AAluminium sulphate
- BIron sulphate
- CZinc sulphate
- ✓copper sulphate
Answer: D.
View full solution →Assertion (A): Variation is useful for the survival of a species over time.
Reason (R): The process of DNA copying will have variation each time because biochemical reactions are not reliable.
Reason (R): The process of DNA copying will have variation each time because biochemical reactions are not reliable.
i. State the function of the following plant hormones
a. Abscisic acid
b. Cytokinin
ii. Define chemotropism
a. Abscisic acid
b. Cytokinin
ii. Define chemotropism
What is an ecosystem? Give one example each of
i. natural, and
ii. man-made ecosystem.
i. natural, and
ii. man-made ecosystem.
a. Explain the role of UV radiation in producing ozone layer.
b. Mention the reaction involved.
c. Why is excessive use of CFCs a cause of concern?
b. Mention the reaction involved.
c. Why is excessive use of CFCs a cause of concern?
Explain the events that take place once a sperm reaches the oviduct till it becomes a foetus. Write the role of placenta in pregnancy.
Solution X turns universal indicator blue to purple whereas solution Y turns universal indicator orange to red.
a. What will be the action of solution X on litmus?
b. What will be action of solution Y on litmus?
c. Name any two substances which can give solutions like X .
a. What will be the action of solution X on litmus?
b. What will be action of solution Y on litmus?
c. Name any two substances which can give solutions like X .
a. Mention one function each of the following organs in human male reproductive system:
i. Testis
ii. Scrotum
iii. Vas deferens
iv. Prostate gland
b. Name the type of germ cell which (i) is motile, and (ii) stores food.
i. Testis
ii. Scrotum
iii. Vas deferens
iv. Prostate gland
b. Name the type of germ cell which (i) is motile, and (ii) stores food.
a. Name the two types of gametes produced by men.
b. Does a male child inherit X chromosome from his father? Justify.
c. How many types of gametes are produced by a human female?
b. Does a male child inherit X chromosome from his father? Justify.
c. How many types of gametes are produced by a human female?
Sample pieces of five metals A, B, C, D and E were added to the tabulated solutions separately. The results observed are shown in the table:
Based on the observations recorded in the table, answer the following:
(1) Which is the most reactive metal?
(2) Which is the least reactive metal?
(3) What would be observed if metal D were added to a solution of copper (II) sulphate?
(4) What would be observed if metal E were added to a solution of iron (II) sulphate?
(5) Arrange the metals $\mathrm{A}, \mathrm{B}, \mathrm{C}, \mathrm{D}$ and E in decreasing order of their reactivity?
View full solution →| Metal | FeSO4 | CuSO4 | ZnSO4 | AgNO3 | Al2(SO4)3 |
| A | No Change | No Change | No Change | Coating on metal | No Change |
| B | Grey Deposit on metal | Brown Coating on metal | No Change | Coating on metal | No Change |
| C | No Change | No Change | No Change | No Change | No Change |
| D | No Change | --------- | No Change | Coating on metal | No Change |
| E | --------- | Brown Coating | New Coating | New Coating | No Change |
Based on the observations recorded in the table, answer the following:
(1) Which is the most reactive metal?
(2) Which is the least reactive metal?
(3) What would be observed if metal D were added to a solution of copper (II) sulphate?
(4) What would be observed if metal E were added to a solution of iron (II) sulphate?
(5) Arrange the metals $\mathrm{A}, \mathrm{B}, \mathrm{C}, \mathrm{D}$ and E in decreasing order of their reactivity?
Translate the following statement into a chemical equation and then balance it :
Barium chloride reacts with aluminium sulphate to give aluminium chloride and a precipitate of barium sulphate.
Barium chloride reacts with aluminium sulphate to give aluminium chloride and a precipitate of barium sulphate.
What is a displacement reaction? Write balanced chemical equation for a displacement reaction in which iron is a reactant. Name one more element whose behaviour is similar to that of iron in such reactions. Why will this kind of behaviour not be shown by gold?
i. Define a reflex arc. Why have reflex arcs evolved in animals? Trace the sequence of events which occur, when you suddenly touch a hot object.
ii. Name the part of nervous system which helps in communication between the central nervous system and other parts of the body. What are the two components of this system?
ii. Name the part of nervous system which helps in communication between the central nervous system and other parts of the body. What are the two components of this system?
a. What is puberty? Write any two changes that occur in boys during early teenage years.
b. List two functions performed by testis in human males.
Mention one role each of (i) Vas deferens, (ii) Seminal Vesicle (iii) Urethra and (iv) Scrotum in human male reproductive system.
b. List two functions performed by testis in human males.
Mention one role each of (i) Vas deferens, (ii) Seminal Vesicle (iii) Urethra and (iv) Scrotum in human male reproductive system.
Carbon compounds can be easily oxidised on combustion. In addition to this complete oxidation, we have reactions in which alcohols are converted to carboxylic acids. We see that some substances are capable of adding oxygen to others. These substances are known as oxidising agents. Also some compounds are capable of adding hydrogen. These substances are known as reducing agents.
i. Give any two examples of good oxidising agent.
ii. Complete the reaction:
$\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{OH}+\text { Alk. } \mathrm{KMnO}_{4} \rightarrow$
iii. Give some uses of Alcohol.
OR
Why Acidified potassium dichromate is called an oxidising agent?
View full solution →i. Give any two examples of good oxidising agent.
ii. Complete the reaction:
$\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{OH}+\text { Alk. } \mathrm{KMnO}_{4} \rightarrow$
iii. Give some uses of Alcohol.
OR
Why Acidified potassium dichromate is called an oxidising agent?
A hydrocarbon (P) has the molecular formula $\mathrm{C}_{10} \mathrm{H}_{22}$. A hydrocarbon (Q) has two carbon atoms less than (P) and belong to the same homologous series. A hydrocarbon (R) has two carbon atoms more than (P) and belong to the same homologous series.
i. What is the molecular formula of (Q)? Also write its IUPAC name.
ii. To which homologous series do the compound $(\mathrm{P}),(\mathrm{Q})$ and $(\mathrm{R})$ belong?
iii. State two characteristics of homologous series?
OR
What can you say about properties of compounds (P), (Q) and (R)
View full solution →i. What is the molecular formula of (Q)? Also write its IUPAC name.
ii. To which homologous series do the compound $(\mathrm{P}),(\mathrm{Q})$ and $(\mathrm{R})$ belong?
iii. State two characteristics of homologous series?
OR
What can you say about properties of compounds (P), (Q) and (R)
During respiration in an organism A, one molecule of glucose produces 2 ATP molecules whereas in respiration of another organism B, one molecule of glucose produces 38 ATP molecules.
i. Which organism is undergoing aerobic respiration?
ii. Which organism is undergoing anaerobic respiration?
iii. Which type of organism A or B can convert glucose into alcohol?
iv. Name one organism which behaves like A.
v. Name one organism which behaves like B.
i. Which organism is undergoing aerobic respiration?
ii. Which organism is undergoing anaerobic respiration?
iii. Which type of organism A or B can convert glucose into alcohol?
iv. Name one organism which behaves like A.
v. Name one organism which behaves like B.
Common salt is a very important raw material as many compounds of industrial use can be prepared from it. Explain, giving chemical equations, the method of preparation of washing soda from sodium chloride. List four industrial/domestic uses of washing soda.
Define water of crystallisation. Give the chemical formula for two compounds as examples. How can it be proved that the water of crystallisation makes a difference in the state and colour of the compounds?
The resultant magnetic field at point $\mathbf{P}$ situated midway between two parallel wires (placed horizontally each carrying a steady current I is
- Ain the vertically upward direction.
- Bin the same direction as the current in the wires.
- Cin the vertically downward direction.
- ✓zero
Answer: D.
View full solution →Which of the following statement(s) is/are correct regarding scattering of light?
i. Scattering is responsible for the bluish appearance of the sky.
ii. Clouds having droplets of water scatter all wavelengths almost equal and so are generally white.
iii. Advanced sunrise and delayed sunset are due to atmospheric reflection.
i. Scattering is responsible for the bluish appearance of the sky.
ii. Clouds having droplets of water scatter all wavelengths almost equal and so are generally white.
iii. Advanced sunrise and delayed sunset are due to atmospheric reflection.
- A(i), (ii) and (iii)
- BOnly (ii) and (iii)
- ✓Only (i) and (ii)
- DOnly (iii)
Answer: C.
View full solution →Assertion (A): Large concave mirrors are used to concentrate sunlight to produce heat in solar cookers.
Reason (R): Concave mirror converges the light rays falling on it to a point.
Reason (R): Concave mirror converges the light rays falling on it to a point.
a. Write the mathematical expression for Joule's law of heating.
b. Compute the heat generated while transferring 96000 coulomb of charge in two hours through a potential difference of 40 V .
b. Compute the heat generated while transferring 96000 coulomb of charge in two hours through a potential difference of 40 V .
An electric heater rated 1100 W operates at 220 V . Calculate (i) its resistance, and (ii) the current drawn by it.
Draw ray diagram showing the image formation by a convex lens when an object is placed at twice the focal length of the lens.
a. Draw the pattern of magnetic field lines produced by a current carrying circular loop showing the direction of current in the loop and the direction of the magnetic field lines.
b. State the rule which can be applied to know the direction of magnetic field lines in the above case.
b. State the rule which can be applied to know the direction of magnetic field lines in the above case.
Draw a schematic diagram of a circuit consisting of a battery of three cells of 2 V each, a $5 \Omega$ resistor, an $8 \Omega$ resistor, and a $12 \Omega$ resistor and a plug key, all connected in series. Now, connect the ammeter to measure the current through the resistors and a voltmeter to measure the potential difference across the $12 \Omega$ resistors. What would be the readings in the ammeter and the voltmeter?
View full solution →What are the common defects of vision that can be corrected by the use of suitable eyeglasses or spectacles?
The electrical energy consumed by an electrical appliance is given by the product of its power rating and the time for which it is used. The SI unit of electrical energy is Joule. Actually, Joule represents a very small quantity of energy and therefore it is inconvenient to use where a large quantity of energy is involved. So for commercial purposes, we use a bigger unit of electrical energy which is called kilowatt-hour. 1 kilowatt-hour is equal to $3.6 \times 10^{6}$ joules of electrical energy.
i. The energy dissipated by the heater is E. When the time of operating the heater is doubled, what would be the energy dissipated?
ii. The power of a lamp is 60 W . What will be the energy consumed in 1 minute?
iii. The electrical refrigerator rated 400 W operates 8 hours a day. The cost of electrical energy is ₹ 5 per kWh.
Find the cost of running the refrigerator for one day.
OR
Calculate the energy transformed by a 5 A current flowing through a resistor of $2 \Omega$ for 30 minutes.
View full solution →i. The energy dissipated by the heater is E. When the time of operating the heater is doubled, what would be the energy dissipated?
ii. The power of a lamp is 60 W . What will be the energy consumed in 1 minute?
iii. The electrical refrigerator rated 400 W operates 8 hours a day. The cost of electrical energy is ₹ 5 per kWh.
Find the cost of running the refrigerator for one day.
OR
Calculate the energy transformed by a 5 A current flowing through a resistor of $2 \Omega$ for 30 minutes.
a. What is a lens? List two main categories of lenses. In which category is a double concave lens placed?
b. A convex lens of focal length 15 cm forms a real image at a distance of 20 cm from its optical centre. Find the position of the object. Is the image formed by the lens magnified or diminished?
b. A convex lens of focal length 15 cm forms a real image at a distance of 20 cm from its optical centre. Find the position of the object. Is the image formed by the lens magnified or diminished?
i. Draw a ray diagram to show the path of the reflected ray in each of the following cases:
A ray of light incident on a convex mirror
1. parallel to its principal axis, and
2. is directed towards its principal focus
ii. A 1.5 cm tall candle flame is placed perpendicular to the principal axis of a concave mirror of focal length 12 cm . If the distance of the flame from the pole of the mirror is 18 cm , use mirror formula to determine the position and size of the image formed.
A ray of light incident on a convex mirror
1. parallel to its principal axis, and
2. is directed towards its principal focus
ii. A 1.5 cm tall candle flame is placed perpendicular to the principal axis of a concave mirror of focal length 12 cm . If the distance of the flame from the pole of the mirror is 18 cm , use mirror formula to determine the position and size of the image formed.
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