1. Select the incorrect statement out of the following.

2. Match column I with column II and select the correct option.

Column I                                                                    Column II

1. Hydrilla                                                               (i) Parasitic
2. Pitcher plant                                                      (ii) Saprotroph
3. Cuscuta                                                               (iii) Photosynthesis
4. Bread mould                                                      (iv) Insectivorous

3.Carbohydrates are mainly made up of which of the following elements?

4. Which of the following equations correctly represents the process of photosynthesis?

5.Which of the following options contains end- products of photosynthesis?

6.Green plants synthesize their food in the form of

7. Lichen is an association between

8.  Replenishment of nutrients in the soil can be done by

9. Photosynthesis converts

10. ____________ is a leafless and rootless parasitic plant that derives its nutrition from a living host plant.

11.The mode of nutrition in which an organism cannot prepare its own food and depends on other organisms for its nutrition is referred to as

12. Which of the following organisms are capable of performing photosynthesis?

13.Which of the following statements is correct regarding stomata?

14. The main function of leaf is

15. Green plants are called as autotrophs because

16.The production of carbohydrates from CO₂ and H₂O in the presence of chlorophyll using sunlight energy and releasing O₂ is called ___________

17. Symbiotic relationship is one, in which

18. Which of the following organisms is not an autotroph?

19. An example of nitrogen fixing symbiotic bacteria is

20.The diagram shows a destarched, variegated leaf, partly covered by black paper. The plant is placed in bright light for several hours.

Four discs are then cut from the leaf in the positions shown and are tested for starch. Which disc contains starch?

PHYSICS

1. The force needed to stop a moving body in a definite time depends on :

2. The linear momentum of a body of mass m moving with velocity v is:

3. The unit of linear momentum is :

4. Linear momentum is a :

5. Newton’s first law of motion defines force :

6. According to Newton’s second law, the acceleration produced in a body is :

7. The correct form of Newton’s second law is :

8. The mathematical expression of Newton’s second law of motion is :

9. For a given force F, the graph plotted for acceleration against mass is :

10. The acceleration produced in a body by a force of a given magnitude depends on :

11. The S.I. unit of force is :

12. 1 Newton is equal to:

13. The force required to produce an acceleration of 5 ms^-2 in a body of mass 2 kg is :

14. According to Newton’s second law of motion, the change in momentum takes place in a direction:

15. For relation F = mΔv/Δt to hold true, the condition(s) necessary is/are:

CHEMISTRY

1. . The melting of ice is an example of:

2. Burning of paper is:

3. Which of the following is a reversible change?

4. Rusting of iron is caused by:

5. Which of the following is a chemical change?

6. Which process is a physical change?

7.  Which change cannot be reversed?

8. Which one is NOT a chemical change?

9. Which of these produces a new substance?

10. What type of change is condensation of steam?

11. Which of the following is an example of a slow change?

12. Which change gives out heat and light?

13. Which of the following is an example of expansion on heating?

14. Freezing of water is an example of:

15. Which is a desirable chemical change?

MATHS

large Numbers Around Us (Q1–Q5)

1. The smallest 8-digit number is:

2. The successor of 7,89,999 is:

3. The place value of 9 in 9,53,427 is:

4. Write the Roman numeral for 74:

5. Which of these is the largest number?

Basic Geometry (Q6–Q9)

6. How many sides does a nonagon have?

7. A line segment joining the center of a circle to any point on it is called:

8. The sum of all angles of a quadrilateral is:

9. Which 3D solid has no vertices?

Simple Equations (Q10–Q12)

10. Solve for x: 3x = 21

11. If 5x – 10 = 15, then x = ?

12. If 2x + 9 = 25, then x = ?

Decimals (Q13–Q15)

13. 5.62 + 3.8 = ?

14. 8.4 ÷ 100 = ?

15. Arrange in ascending order: 0.6, 0.66, 0.606, 0.56