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Science and Technology 1 Official 2022-2023 SSC (English Medium) 10th Standard Board Exam Question Paper Solution

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Science and Technology 1 [Official]
Marks: 40 Maharashtra State Board
SSC (English Medium)
SSC (Marathi Semi-English)

Academic Year: 2022-2023
Date & Time: 17th March 2023, 11:00 am
Duration: 2h
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General Instructions :

  1. All questions are compulsory.
  2.  Use of a calculator is not allowed.
  3. The numbers to the right of the questions indicate full marks.
  4. In case of MCQs (Q. No. 1(A)) only the first attempt will be evaluated and will be given credit.
  5. For each MCQ, the correct alternative (A), (B), (C), or (D) with a subquestion number is to be written as an answer.
    For Eg. : (i) (A), (ii) (B), (iii) (C)
  6. Scientifically correct, labelled diagrams should be drawn wherever necessary.

[10]1
[5]1.A | Write the correct alternative :
[1]1.A.i

The device used for producing electric current is called a ______.

generator

galvanometer

ammeter

motor

Concept: undefined - undefined
Chapter: [0.15] All about Electromagnetism
[1]1.A.ii

If a ray of light passes from a denser medium to a rarer medium in a straight line, the angle of incident must be ______.

30°

60°

90°

Concept: undefined - undefined
Chapter:
[1]1.A.iii

The power of convex lens of focal length 20 cm is ______.

+5.0 D

0.20 D

-5.0 D

0.5 D

Concept: undefined - undefined
Chapter: [0.07] Lenses [0.16] Wonders of Light 1
[1]1.A.iv

Non-metal that is a good conductor of electricity:

Bromine

Iodine

Graphite

Sodium

Sulphur

Concept: undefined - undefined
Chapter: [0.08] Metallurgy
[1]1.A.v

The height of medium earth orbit above the surface of the earth is ______.

1,500 km

250 km

45,000 km

25,000 km

Concept: undefined - undefined
Chapter: [0.1] Space Missions
[5]1.B | Answer the following :
[1]1.B.i

Tell the odd one out. Give proper explanation.

Loud speaker, Microphone, Electric motor, Magnet.

Loud speaker

Microphone

Electric motor

Magnet

Concept: undefined - undefined
Chapter: [0.04] Effects of Electric Current [0.15] All about Electromagnetism
[1]1.B.ii

Complete the co-relation:

CuI2 : Brown : : AgCl : ______

Concept: undefined - undefined
Chapter: [0.03] Chemical Reactions and Equations
[1]1.B.iii

Match the pair:

Group 'A'   Group 'B'
Substance   Refractive index
Air (a) 1.33
  (b) 1.46
  (c) 1.0003
Concept: undefined - undefined
Chapter: [0.06] Refraction of Light [0.17] Wonders of Light 2
[1]1.B.iv

State True or False:

"Wavelength of red light is close to 700 nm.”

True 

False

Concept: undefined - undefined
Chapter: [0.06] Refraction of Light
[1]1.B.v

Write the name of small satellite made by a group of students from COEP (College of Engineering, Pune) sent to the space through ISRO in 2016.

Concept: undefined - undefined
Chapter: [0.1] Space Missions
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[10]2
[4]2.A | Give scientific reasons (any two) :
[2]2.A.i

Give a scientific reason.

For electric power transmission, copper or aluminium wire is used.

Concept: undefined - undefined
Chapter: [0.04] Effects of Electric Current [0.14] The Electric Spark
[2]2.A.ii

Write scientific reasons.

Lemon or tamarind is used for cleaning copper vessels turned greenish.

Concept: undefined - undefined
Chapter: [0.03] Chemical Reactions and Equations [0.08] Metallurgy
[2]2.A.iii

Write scientific reason.

Elements belonging to the same group have the same valency.

Concept: undefined - undefined
Chapter: [0.02] Periodic Classification of Elements
[6]2.B | Answer the following questions (any three) :
[2]2.B.i

How do we feel about air in each of the following conditions?

  1. Relative humidity is more than 60%.
  2. Relative humidity is less than 60%.
Concept: undefined - undefined
Chapter: [0.05] Heat
[2]2.B.ii

Complete the following reaction:

\[\ce{C_12H_22O11->[Heat]}\] ______ + ______.

Concept: undefined - undefined
Chapter: [0.03] Chemical Reactions and Equations [0.12] The Magic of Chemical Reactions
[2]2.B.iii

Distinguish Between:

Mass and Weight

Concept: undefined - undefined
Chapter:
[2]2.B.iv

Complete the Following table.

Sr. no. Type of Satellite The names of Indian Satellite and launcher
(1) Navigational Satellite Satellite: ______
Launcher: ______
(2) Earth Observation Satellite Satellite: ______
Launcher: ______
Concept: undefined - undefined
Chapter: [0.1] Space Missions
[2]2.B.v

Define periods of modern periodic table.

Concept: undefined - undefined
Chapter: [0.02] Periodic Classification of Elements [0.11] School of Elements

Define groups of modern periodic table.

Concept: undefined - undefined
Chapter: [0.02] Periodic Classification of Elements [0.11] School of Elements
[15]3 | Answer the following (any five) :
[3]3.A

Calculate the escape velocity on the surface of the moon given the mass and radius of the moon to be 7.34 × 1022 kg and 1.74 × 106 m respectively.

(Given: G = 6.67 × 10-11 Nm2/kg2)

Concept: undefined - undefined
Chapter: [0.01] Gravitation
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[3]3.B

An element has its electron configuration as 2, 8, 1. Now answer the following questions:

  1. What is the atomic number of this element?
  2. What is the group of this element?
  3. To which period does this element belong?
Concept: undefined - undefined
Chapter: [0.02] Periodic Classification of Elements
[3]3.C

Observe the figure and name the ray AB, ray CD, ray GH.

Concept: undefined - undefined
Chapter: [0.17] Wonders of Light 2 [0.17] Wonders of Light 2
[3]3.D

Read the following sentence and answer the questions:

"NaCl is an ionic compound."

  1. Why is NaCl an ionic compound?
  2. State any two properties of ionic compounds.
Concept: undefined - undefined
Chapter:
[3]3.E

Identify the physical and chemical changes from the following Phenomena:

  1. Transformation of ice into water.
  2. Ripening of fruit.
  3. Milk turned into curd.
  4. Evaporation of water.
  5. Digestion of food in the stomach.
  6. Iron fillings get attracted towards the magnet.
Concept: undefined - undefined
Chapter:
[3]3.F

Observe the following diagram and answer the questions given below:


       Specific heat capacity of metals

  1. Which element has maximum specific heat capacity? Justify.
  2. Which element has minimum specific heat capacity? Justify.
  3. Define specific heat of object.
Concept: undefined - undefined
Chapter: [0.05] Heat
[3]3.G
[1]3.G.i

Identify the figure and give its use.

Concept: undefined - undefined
Chapter: [0.04] Effects of Electric Current [0.14] The Electric Spark
[1]3.G.ii

Identify the figure and give its use.

Concept: undefined - undefined
Chapter: [0.04] Effects of Electric Current [0.14] The Electric Spark
[1]3.G.iii

Identify the figure and give its use.

Concept: undefined - undefined
Chapter: [0.04] Effects of Electric Current
[3]3.H

Complete the following flow chart:

Concept: undefined - undefined
Chapter: [0.09] Carbon Compounds
[5]4 | Answer any one of the following :
[5]4.A

Observe the figure and answer the following questions: 

  1. Name the defect of vision represented in the above figure.
  2. State the reasons for this defect.
  3. How is it corrected?
  4. Draw the diagram to show the correction of this defect.
Concept: undefined - undefined
Chapter: [0.07] Lenses [0.16] Wonders of Light 1
[5]4.B

Complete the following table:

S.N. Common
Name
Structural
Formula
IUPAC
Name
1. Ethylene CH2 = CH2 ______
2. Acetylene ______ Ethyne
3. Acetic acid CH3-COOH ______
4. Methyl alcohol ______ Methanol
5. ______ CH3-CO-CH3 Propane-2-one
Concept: undefined - undefined
Chapter:

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