SSC Papers Science I

SSC Papers for Practice Science I Maharashtra Board

I) A.(a) Rewrite the following statements with suitable words in the blanks: (2)

        i. In ________ combination of resistors, the current is the same in every part of the circuit.

      ii. Nutritional enrichment of water is called________.

I) A.(b) Rewrite the following table so as to match the second column with the first column: (2)

Column ‘A’	Column ‘B’
i)        Natural indicator	a.      Neutralization
ii)      2Cu+O2→2CuO	b.      Beet root
iii)    Synthetic Indicator	c.       Methyl orange
	d.      Oxidation

           

I) B. Rewrite the following statements by selecting the correct options: (5)

i) 1 µA = ________ A.

a) 10^-3

b) 10^-8

c) 10⁶

d) 10⁶

ii) A student added few drops of universal indicator to kokam extract, the colour of the solution will become________.

a) Pink

b) Violet

c) Orange

d) Blue

iii) For spherical mirrors distances measured perpendicular to and above the principal axis are taken as  ________.

a) Negative

b) Zero

c) Positive

d) Infinite

iv) If four resistors having values 1 Ω are connected in parallel combination, the effective resistance will be ________.

a) 2 Ω

b) 0.25 Ω

c) 4 Ω

d) 2 Ω

v) While performing an experiment to trace the path of a light ray through a rectangular glass slab, four students 1, 2, 3 and 4 tabulated their observation as given below:

Students		r	e
1	40	50	55
2	60	40	40
3	40	35	40
4	50	55	50

a) 1

b) 2

c) 3

d) 4

II) Solve any five of the following: (10)

i)  Give any four uses of bleaching powder.

ii) Why do the elements in the same group of periodic table show same valency?

iii) Find the resistance of 60 W, 240 V bulb.

iv) Draw a ray diagram for concave mirror when the object is kept at focus.

v)  Stars twinkle at night. Give scientific reason.

vi) Define the term ‘Redox reaction’. Give one example of it.

III)  Answer any five of the following: (15)

i) Explain the refraction of light when a ray moves from denser medium to rare medium.

ii) Classify following elements into metals, non-metals and metalloids:

B, Mg, O, F, Si, He, Na, Cl, K.

iii) Write a short note on ‘Alternating Current (AC)

iv) Identify ‘X’ and ‘Y’ and write the balanced chemical reaction for the following:

a. When ‘X’ burns in presence of oxygen, the oxide of ‘X’ i.e. Alumina is formed.

b. When Sulphur dioxide gas reacts with hydrogen sulphide gas, sulphur and ‘Y’ are formed.

v)  Describe the effects of soil pollution on ecosystem.

vi) Explain the working of electric iron and bulb.

IV)  Attempt any one of the following: (5)

i)  Describe the construction and working of an A.C. generator.

ii) Priya, a student of standard IX is using spectacle of number -2.0. from this information answer the following questions:

a. Name the defect of eye from which Priya is suffering.

b. Which are the two possible reasons behind this defect of eye?

c. Name the type of lens she is using in her spectacle.

d. Find the focal length of the lens.

Marathi Writing Skill

खाली fदलेल्या मुद्दयांच्या आधारे गोष्ट लिहा 

मुद्दे-एक राजा-त्याचा राज्यातीत लोक आळशी –त्यांना उदयोगी बनfवण्याचा fवचार-रस्त्यात मोठा दगड ठेवतो-त्याखाली लहानशी fपशवी-अनेक लोक बाजूने जातात-दगड तसाच-एक गरीब मनुष्य-दगड बाजूला करतो-दगडाखाली fपशवी-fपशवीत सोन्याची नाणी-बक्षीस अशी fचùी लोक उदयोगी बनतात.

य्) गदयआकलन:                                               (05)

पुढील उतारा वाचून त्यावर असे पाच प्रश्न तयार करा की, ज्याची उत्तरे प्रत्येकी एका वाक्यात येतील.

आळशी माणूस हा सतत आरामची अपेक्षा करत असतो. तरा खरा काम करणारा माणूस आराम हराम है असे मानतो. रात्रीची पाच-सहा तास झोप ही fवश्रांतीसाठी पुरेशी असते. इतर वेळी त्याने सतत काम करत राहावे. उगाचच बसून राfहल्याने अंगात आळस वाढतो. उलट प्रत्येकाने हे लक्षात ठेवले पाfहजे की काळ हा सतत पुढे जात असतो. तो कोणासाठीही थांबत नाही. आपण तो आळसात व्यथ& दवडला तर आपला काय&भाग साधणार नाही. सतत तेच काम करत राfहल्यास कंटाळा येतो म्हणून तर सहा fदवस काम वेÀल्यावर रfववारी सुट्टी येते. त्या fदवशी आळसात लोळत पडण्यापेक्षा माणसाचे छंदात रमून जावे.

य्) वृत्तांतलेखन

तुमच्या शाळेत साजरा वेÀलेल्या वृक्षारोपण काय&क्रÀमाचा वृत्तांत fलहा:

प्र. 5 क) पुढील लेखन प्रकारापैकी कोणतीही एक वृÀती सोडवा.  (य् पैकी ङ्क) (शब्दमया&दा 80 ते ङ्क00 शब्द)

ङ्क) माझी भारत भूमी:                                          (05)

ऐfतहाfसक परंपरा ..............

महान संस्वृÀfत .....................

वीरांचा देश .......................

सुजलाम् सुफलाम् .......................

जगाला देणगी ........................

तंत्रfवकास ...........................

ङ्ग)सूय& उगवला नाही तर-

य्) फुलाचे  आत्मवृत

जन्म उदयानात -     कळी – पूल -       मूलाने तोडणे -       कच॒यात पटकून  देणे - देवळात स्थान नाही - व्यथा

SSC Paper Science II

SSC Papers for Practice Science II Maharashtra Board

I) A. (1) Fill in the blank and rewrite the completed statement: (3)

i)  E-waste rules are applicable to all ________ and consumers.

ii) During unfavorable conditions ________ type of fission is seen in amoeba.

iii) The loss of water from the plants is known as ________.

  (2) State whether the following statements are True or False: (2)

i) Evolutionary changes are very rapid and random.

ii)Mercury, silver and gold are very reactive metals.

I) B. Rewrite the following statements by selecting the correct options: (5)

(1) Ethanoic acid which solidifies below 290 K is known as________.

a) Ice

b) Solid acetic acid

c) Glacial acetic acid

d) Ethyl acetate

(2) To demonstrate that carbon dioxide is given out during respiration,  ________ can be placed in a conical flask..

a) Live cockroaches

b) Roasted peanuts

c) Dead fish

d) Cut vegetables

(3) During photosynthesis, ________ absorbs the radiant energy from the sun.

a) Water

b) Starch

c) Chlorophyll

d) CO₂

(4) Organisms such as Hydra use ________ for reproduction in the process of budding.

a) Regenerative cells

b) Generative cells

c) Hyphae

d) None of these

(5) A solution of Al₂ (SO₄)₃ in water is not clear. It is due to ________.

a) Impurities present in water

b) Hydrolysis of Al₂ (SO₄)₃in water

c) Impurities present in of Al₂ (SO₄)₃

d) none of these

II)  Answer any five of the following: (10)

(1) What are unsaturated hydrocarbons? Give examples.

(2) State two functions of MPCB for prevention of water pollution.

(3) Explain the term vegetative propagation. Give examples.

(4) Write any four physical properties of non-metals.

(5) Sketch and label the following diagram:

DNA molecule.

(6) Give scientific reasons for the following:

We must preserve and conserve water.

III)  Attempt any five of the following: (15)

(1) Which are the dominant and recessive traits in human beings?

(2) Define transpiration and ascent of sap. How are they interrelated?

(3) Write the molecular and structural formula of ethanoic acid and state its two physical properties.

(4) Describe multiple fission seen in Amoeba with the help of diagram.

(5) Describe the structure and functions of human brain.

(6) Who was Mendel? What was his contribution to the field of genetics?

IV)  Attempt any one of the following: (5)

(1) In the extraction of aluminium.

i) Draw the diagram of extraction of aluminium.

ii) Write the cathode reaction and anode reaction in electrolytic reduction of alumina.

iii) Why is it necessary to replace anodes from time to time?

(2) Describe the respiratory system in human beings.

SSC Papers Geometry

SSC Papers for Practice Geometry Maharashtra Board

Q.1) Solve any Five (5)       

1) ∆ABC ∽ ∆PQR. If AB : PQ = 2:3 Find A∆ABC: A ∆PQR

2) Two circles touch externally and their radii are 4 and 7. Find distance between their centres.

3) Draw an angle of 60^o and bisect it.

4) If initial arm rotates 205^o in clockwise direction find the quadrants in which it lies.

5) Find slope of line if its equation is y = 3x+5

6) Find volume of cube of side 7cm.

Q.2) Solve any Four (8)

1) A ladder 10m long reaches a window 8m above the ground. Find distance of the foot of ladder from base of the wall.

2) As shown in Fig. two concentric circles are  given and line AB is tangent to the smaller circle at T.  Show that T is the midpoint of seg AB.

3) From the top of a lighthouse, an observer looks at a ship and finds the angle of  depression to be 60°. If the height of the lighthouse is 90 metres then find how far is  that ship from the lighthouse

4) The surface area of cone with base radius 40cm is 1640cm². Find height of cone.

5) Draw a circle of radius 3.4cm. Take a point K on the circle and draw tangent without using centre.

6) If the slope of the line joining points (k, -3) and (4, 5) is  ½  then find the value of k.

Q.3. Solve any Three  (9)

1) Adjacent sides of a parallelogram are 11cm and 17cm. if the length of one of its diagonal is 26cm. find length of the other diagonal.

2) Prove Pythagoras Theorem.

3) Construct any right angled triangle and draw incircle of that triangle.

4) Find possible values of cosx if cotx + cosecx = 5

5) Find area of segment if radius is 10cm and Θ= 90^o. 

Q.4. Solve any Two (8)

1) ∆SHR ∽ ∆SVU SH = 4.5cm, HR = 5.2cm, SR = 5.8cm  SH = 3. Construct ∆SVU                                                                                           SV    5

2) The vertices of a triangle are A(2,3) B(4,9)and C(-2,5). Find equation of median AD.

3) In the Fig. below, two circles touch each other  internally in a point A. The radius of the  smaller circle with centre M is 5. The smaller  circle passes through the centre N of the  larger circle. The tangent to the smaller  circle drawn through C intersects the larger  circle in point D. Find CD.  

Q.5. Solve any Two (10)

1. Seg AD is the median of∆ ABC and AM ⊥ BC. Prove that AC² = AD² + BC× DM + (BC/2)²

2. The angle of elevation of a cloud from a point 60m above a lake is 30^o and the angle of  depression of the reflection of cloud in the lake is 60^o. Find the height of the cloud.

3. A semi circular sheet of metal of diameter 28cm is bent into an open conical cup. Find the depth and capacity of cup.