AP Class 10 Model Paper 2023 Science

This Model Question Paper contains 8 pages. 19E & 20E

GENERAL SCIENCE, Paper-I & II
(English Version)

Time : 3 Hours, 15 Minutes Maximum Marks : 100
Instructions :
1. This paper consists of Part-A and Part B.
2. Part-A contains questions from Physical Science and Part-B contains from
Biological Science.
3. Part-A and Part-B contains 4 sections each.
4. There are 33 Questions in the paper.
5. There is an internal choice in Section IV of Part-A and Part-B.
6. Write all the questions visibly and legibly.
7. 15 minutes are given for reading the question paper.

PART - A (PHYSICAL SCIENCE)
SECTION I 6×1=6
2. Each question carries 1 mark.

1. Convert 40°C into Kelvin scale.

2. Answer the following questions by observing the table given
below.
Material Refractive Index
Water 1.33
Ice 1.31

A) Which is denser medium ?
B) In which medium light travels faster ?

3. Draw the shape of ‘S’ orbital.

4. 3 , 3  resistances are connected in series. Calculate the resultant
resistance.

1 Turn Over

5. List any two metals that are found in nature as oxides.

6. Statement 1 : Alkanes undergo Substitution reactions only

Statement 2 : Alkanes undergo Addition reactions only

Choose the correct option and write it in your answer booklet.

A) Only statement 1 is correct

B) Only statement 2 is correct

C) Both 1, 2 statements are correct

D) Both 1,2 statements are wrong

SECTION II 4×2=8

2. Each question carries 2 marks.

7. Assume and write why the sky is blue.

8. Pose any two questions about Modern Periodic Table?

9. H He Li Be B C N O F Ne Na

From the above elements which two elements' valency is zero ?

10. Write the bond angles of BeCl2 and BF3.

2

SECTION III 3 × 4 = 12

2. Each question carries 4 marks.

11. Draw a ray diagram for the image formed when an object is kept at 2F2

before a convex lens.

12.

The values from X to M is in an ascending order. Value of A is 7.

Then : 1) Which of the letters represents a strong acid ?

2) Out of K, L which is a strong base ?

3) Which of the letters represents a weak base ?

4) Which letter represents neutral ?

13. Write any four uses of carbon and its allotropes.

3 Turn Over

SECTION IV 3 × 8 = 24

2. Each question carries 8 marks.
3. Each question has internal choice.

14. Compare and contrast between Evaporation and Condensation.

(OR)

Explain the working procedure of motor.

15. Write how N2 molecule forms. Explain.

(OR)

For metals and ores write the examples for the following.

1) Sulphate 2) Carbonate 3) Sulphide 4) Halide

16. Explain the procedure to prove Snell’s law.

(OR)

Explain experimentally, how a metal reacts with an acid ?

4

PART - B (BIOLOGICAL SCIENCE)
SECTION I 6×1=6

2. Each question carries 1 mark.

17. What does the following equation represent ?

C6H12O6 + 6O2 6CO2 + Energy

18. What are the valves present at the auriculo-ventricular septum ?

19. Natural resources are decreasing more rapidly. Guess the consequences
of future.

20. Read the information of Kolleru lake given here under and answer the
questions.

Sl.No. Causes of reduction Area in 1967 Area in 2004
(km2) (km2)

1. Lake with sparse weed 0 47.45
2. Aquaculture ponds 0 99.74
3. Rice fields 8.40 16.62
4. Encroachments 0.31 1.37

a) What are the reasons for decrease in lake area ?

b) Which human activity leads to a significant decrease in lake area ?

21. How do you appreciate the role of hormones in stomach that cause hunger
alarming ?

22. Draw the picture of logo for recycling.

5 Turn Over

SECTION II 4×2=8
2. Each question carries 2 marks.

23. What are the important events that take place in chloroplast during

photosynthesis ?

24. You want to know more information about harmful effects of using

chemical pesticides in agriculture. What questions will you ask to an

agronomist ?

25. Observe the following table that shows the human evolution

chronology and answer the questions given under the data.

Sl.No. Human species lived / appeared

1. Homo habilus 1.6 – 2.5 million years ago

2. Homo erectus 1 – 1.8 million years ago

3. Homo neanderthalensis 1,00,000 – 40,000 million years ago

4. Homo sapiens 15,000 – 10,000 million years ago

1) Which human species lived before the present human species ?

2) Who lived between 1 – 1.8 million years ago ?

26. What happens to the rate of photosynthesis, if CO2 concentration is kept

increased continuously ?

6

SECTION III 5 × 4 = 20

2. Each question carries 4 marks.

27. Write the differences between veins and arteries.

28. Observe the following data :

S.No. Type of respiration Respiratory Organisms perform
organs respiration

1. Cutaneous respiration Skin Round worms,
Earth worm, Frog
2. Tracheal respiration Tracheae Cockroach, Grass hopper
3. Branchial respiration Gills Fish
4. Pulmonary respiration Lungs Reptiles, Birds, Mammals

Now answer the following questions :

1. What type of respiration occurs in crow ?
2. What are the respiratory organs in the organisms that perform
branchial respiration ?
3. Which organisms show tracheal respiration ?
4. What is the respiratory organ in earth worm ?

29. Explain the process of sex determination in human beings.

30. Draw the internal structure of kidney and label the parts.

31. Plant hormones cooperate/differ with one another to attain the plant
growth. How do you use this knowledge in your daily life ?

7 Turn Over

SECTION IV 2 × 8 = 16

2. Each question carries 8 marks.

3. Each question has internal choice.

32. a) What are the different modes of asexual reproduction in plants.

Cite them with examples.

OR

b) Write the differences between the following :

(i) bolus - chyme (ii) small intestine - large intestine.

33. a) Write the procedure to determine the presence of starch in the leaves.

OR

b) What experiment do you suggest to prove that heat is evolved during

respiration ?

8

WEIGHTAGE TABLE FOR GENERAL SCIENCE PAPER SSC-2023
TOTAL
AS-1 AS-2 AS-3 AS-4 AS-5 AS-6 QUESTIONS TOTAL MARKS

PS 2 1- 1 1 1 6 6
SECTION - I 12
1 MARK QUESTIONS BS 2 1- 1 1 1 6 6

PS 1 2- 1- - 4 8
SECTION - II
2 MARK QUESTIONS BS 1 2- 1- - 4 8 16
SECTION - III PS - - - 1 1 1 3 12
4 MARKS
QUESTIONS BS 2- - 1 1 1 5 20 32

PS 2- 1- - - 3 24
SECTION - IV
8 MARK QUESTIONS BS 1- 1- - - 2 16 40
33Q 100

WEIGHTAGE TABLE FOR PHYSICS AND CHEMISTRY IN GENERAL SCIENCE PAPER SSC-2023
TOTAL
AS-1 AS-2 AS-3 AS-4 AS-5 AS-6 QUESTIONS TOTAL MARKS

PHYSICS 2 0 0 1 0 0 3 3
SECTION - I 6
1 MARK QUESTIONS CHEMISTRY 0 1 0 0 1 1 3 3

PHYSICS 0 1 0 0 0 0 1 2
SECTION - II
2 MARK QUESTIONS CHEMISTRY 1 1- 1- - 3 6 8

SECTION - III PHYSICS - - - - 1- 1 4
4 MARKS
QUESTIONS CHEMISTRY - - - 1- 1 2 8 12

PHYSICS 1- 1- - - 2 16
SECTION - IV
8 MARK QUESTIONS CHEMISTRY 1- - - - - 1 8 24
5 (20) 3 (5) 1 (8) 3 (7) 2 (5) 2 (5) 16 Q 50 50

WEIGHTAGE TABLE FOR BIOLOGY IN GENERAL SCIENCE PAPER SSC-2023

Academic Standards No. of
AS I AS II AS III AS IV AS V AS VI Marks
Section / Marks Qns.

Section I (1 Mark) 2 1 1 1 1 6 6

Section II (2 Marks) 1 2 1 4 8

Section III (4 Marks) 2 1 1 1 5 20

Section IV (8 Marks) 1 1 2 16

Total Marks & % 20 (40%) 05 (10%) 08 (16%) 07 (14%) 05 (10%) 05 (10%) 17 50