guess paper 1 physical science

Ω OMEGA EDUCATIONAL ACADEMY

C.E. COLONY, Bagh Amberpet, Ph# 98490 05091

GENERAL SCIENCE PAPER-I

THIS IS ONLY A GUESS PAPER PREPARED OUT OF EXPERIENCE.     

Part-A

Time: 2 Hours                                                                                                                                                                                                               Marks: 35

SECTION-I

Note:1. Answer ANY FIVE questions, choosing at least TWO from each Group A&B. 2. Each question                                  carries TWO marks.

GROUP-A

1.         Differentiate between mass and weight?

2.         Explain the working of a centrifuge?

3.         Draw the shapes of a) n-p-n transistor. b) p-n-p transistor?

4.         What is artificial transmutation give example?

 

GROUP-B

5.         Why NaCl and KCl are added to the ore during magnesium extraction?

6.         Two moles of Na₂CO₃ are added to three moles of H₂O.  Find the mole fraction of solute and solvent?

7.         Draw the shapes of H₂O and PCl₅ molecules?

8.         What is annealing?

SECTION-II

Note: 1. Answer ANY FOUR questions from the following. 2. Each question carries ONE (1) mark.

9.          Define acceleration due to gravity?

10.       What is resonating air column?

11.       Write the isotopes of neon?

12.       State Paul's Exclusion principle?

13.       Define pH scale?

14.       What is saponification of oils?

SECTION-III

Note:1. Answer ANY FOUR questions, choosing TWO from each GROUP.  2. Each question carries FOUR (4) marks.

GROUP-A

15.       What is resonance?  Write five examples in day-to-day life.

16.       State Ohm's Law and verify it experimentally.

17.     Explain a) alpha decay. b) Beta decay.                            Or (Compare alpha, beta, and gamma radiations).

18. Explain the formation of p-type semiconductor, n-type semiconductor.

GROUP-B

19.  Explain the formation of multiple covalent bonds.

20.  How is magnesium extracted from magnesite and carnalite?

21.  State Arrhenius theory of acids and bases and write its limitations?

22.  How do you test the quality of soap (or) (what is an ideal drug what are its characteristics).

 

SECTION-IV

Note:

1. Answer ANY ONE question. 2. The question carries FIVE marks.

23.  Draw a neat-labeled diagram of nuclear reactor?

24.  Draw the diagram showing manufacture of sugar from sugar cane.

 

objective-biology- part -B,Class -X

 PART-B

Instructions:

1.         Answer all the questions.

2. Each question carries ½ marks.

 3. For questions 1 to 10, the answers are given under capital letter A, B, C & D the capital letter that indicates the correct answer is to be written in the  brackets provided

4. Correction & over writing will be discredited.

 

I.          Pick up the correct answer and fill in the brackets with the capital letter of the correct answer chosen.

1. Lymph is a part of

A] Digestive system      B] Excretory system              C] Nervous system      D] Transport system              (        )

2. Vitamin K is soluble in

A] Alcohol                         B] Water                                       C] Fat                                 D] Acid                                                     (                 )

3. In which precise area does meiosis take place

A] Stamen                                B] Anther                                C] Pollen mother cell       D] Pollen grain             (                 )

4. Operculum occurs in

A] Bony fishes                      B] Frog                                          C] Cockroach                         D] Cartilagenous fishes      (                 )

5. Smallest of all white blood corpuscles is

A] Erythrocytes                       B] Lymphocytes          C] Monocytes                         D] Eosinophils             (                 )

6. Conversion of Glucose into pyruvic acid yields a net gain of

A] 2 molecules of ATP B] 36 molecules of ATP C] 4 molecules of ATP D] 38 molecules of ATP (       )

7. The disease caused due to the contamination of food in cattle in British is

A] Mad-Cow          B] Cholera              C] Small pox                        D] Diarrhoea                           (        )

8. The length of trachea in man is

A] 11 cm             B] 15 cm                   C] 7 cm                                 D] 3 cm                                                (               )

9. Which cells are destroyed in AIDS

A] Monocytes     B] Lymphocytes     C] Neutrophils                       D] RBC                                               (        )

10. The important anion of the body is

A] Potassium         B] Bromide              C] Chloride                           D] Calcium                                           (                 )

 

II.  Fill in the Blanks

11. Number of spinal nerves in man is _________ pairs.
12. Buds in Bryophyllum are known as ________________ buds.
13. A German called __________________ was the originator of first aid.
14. The human brain has _____________ sense to appreciate poetry.
15. The instrument used for determining BMR is called as _______________.
16. Cell division in vascular cambium is promoted by _________________.
17. The example of active transport in living organisms is ______________.
18. ______________________ won noble prize for his work on Photosynthesis.
19. During the implantation, embryo gets attached to the wall of ______________.
20. ______________ prevents the blood from clotting in the blood vessels.

 

III.              Match the following each questions carries ½ marks.

21. Deficiency of iodine                                   (        )                          A. Cockroach

22. Alary muscles                                (          )                   B. Gills

23. Erythrocytes                                  (         )                   C. Simple goiter

24. Mumps                                          (         )                    D. White blood cells

25. Tadpole larva of frog                     (        )                    E. Red blood cells.

                                                                                           F. Myxovirus parotiditis

                                                                                                                                                                        G. Paramyxovirus

 

26. Xerophthalmia                             (          )                     A. Conjugation.

27. Blood                                           (          )                     B. Nissil granules

28. Vasopressin                                 (          )                     C. Deficiency of 'A' Vitamin

29. Cyton                                           (         )                      D. Hormone

30. Paramoecium                               (         )                      E. Fluid tissue

                                                                                            F. Enzyme

                                                                                            G. Sperm

Bio pre-final,Class -X

GENERAL SCIENCE PAPER-II  

PARTS A and B

            Time: 2 ½ hours                                                                                                              Maximum Marks: 50

            Class:X

            Instructions:

1.                  Answer the questions under Part A on a separate answer book.

2.                  Write the answers to the questions under Part B on the question paper itself.

                                                            Part-A

Time: 2 Hours                                                                           Marks: 35

                                                SECTION-I

Note:

1.      Answer ANY FIVE questions, choosing at least TWO from each Group       A&B.

2.         Each question carries TWO marks.

                                                GROUP-A

1.                  Define photosynthesis and write the chemical equation?

2.                    What is the role of the Riboflavin in the body?

3.                    Describe human sperm?

4.                    Write a short note on glossitis?

                                                GROUP-B

5.                    What is serum?

6.                    What is mal nutrition? What are the defects seen in children due to malnutrition?

7.                    Mention the symptoms of fracture?

8.                    What is the role of Gibberellins in plant growth & development?

                                                SECTION-II

Note:

1.         Answer ANY FOUR questions from the following.

2.         Each question carries ONE (1) mark.

 

9.                    What is apical dominance?

10.                 What is totipotency?

11.                 What is meant by agglutination of blood?

12.                 Which is called as graveyard of red blood cells & why?

13.                 What is tetany?

14.                 What is an explant?

                                                SECTION-III

Note:

1.      Answer ANY FOUR questions, choosing TWO from each GROUP

2.       Each question carries FOUR (4) marks.

                                                                GROUP-A

15.                 Describe the structure of Mitochondria with the help of a neat diagram?

16.                 Write an account on adrenal gland?

17.              What are the differences between combustion and respiration?

18.              What are Agranulocytes? Write an account on them.

                                   

                                                GROUP-B

19.              What are the differences between asexual reproduction & sexual reproduction?

20.              What is hypertension? Describe.

21.              What is meant by Vitamin? How many types of Vitamins are there?

22.              What are the effects of Kwashiorkor on children?

 

                                                SECTION-IV

Note:

1.       Answer ANY ONE question.

2.       The question carries FIVE marks.

 

23.              Draw the diagram showing the internal structure of heart?

24.              Draw the diagram of longitudinal section of Datura flower and label its parts.