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Question Paper Solutions - Science and Technology - 1 2016 - 2017-S.S.C-10th Maharashtra State Board (MSBSHSE)


Marks: 40
[10]1
[5]1.1
[2]1.1.1
[1]1.1.1.1

Find the odd man out:

Camphor, Ammonium Chloride, Naphthalene balls, Sugar

Chapter: [2] The Magic of Chemical Reactions
Concept: Chemical Reactions - Types of Chemical Reactions - Combination
[1]1.1.1.2

Find the odd man out:

Turmeric, Methyl Orange, Rose petals, Beetroot.

Chapter: [1.01] Chemical Reactions
Concept: Chemical Equation
[2]1.1.2

Match the following:

Column I Column II
(i) Myopia (a) Converging power of eye lens becomes low
(ii) Hypermetropia (b) Converging power of eye lens remains the same
  (c) Converging power of eye lens becomes high
Chapter: [6] Wonders of Light 1
Concept: Concept of Human Eye
[1]1.1.3

Fill in the blank:

To increase the effective resistance in a circuit the resistors are connected in _____________.

Chapter: [4.01] Effects of Current
Concept: Electric Current and Circuit
[5]1.2 | Rewrite the following statements by selecting the correct options:
[1]1.2.1

CaCO3  CaO + CO↑ is a __________ reaction.

(a) combination
(b) displacement
(c) double displacement
(d) decomposition

Chapter: [1.01] Chemical Reactions
Concept: Chemical Reactions - Types of Chemical Reactions - Decomposition
[1]1.2.2

The colour of universal indicator solution is ____________.

(a) red
(b) blue
(c) green
(d) greenish yellow

Chapter: [1.02] Acids, Bases and Salts
Concept: Concept of Ph Scale
[1]1.2.3

The height of the image formed by an object of height 10 cm placed in front of a plane mirror is __________.

(a) 5 cm
(b) 10 cm
(c) 15 cm
(d) 20 cm

Chapter: [6] Wonders of Light 1
Concept: Mirror Formula and Magnification
[1]1.2.4

When the resistance of a conductor increases, the current will ________ increase.

(a) decrease
(b) remain the same
(c) become double

Chapter: [4.01] Effects of Current
Concept: Electric Current and Circuit
[1]1.2.5

Lime water turns milky when __________ gas is passed through it.

(a) H2
(b) CO
(c) CO2
(d) SO2

Chapter: [3] The Acid Base Chemistry
Concept: Acid Or a Base in a Water Solution
[10]2 | Answer any five of the following:
[2]2.1

Write two applications of sodium bicarbonate (baking soda).

Chapter: [1.02] Acids, Bases and Salts
Concept: Chemicals from Common Salt - Baking Soda
[2]2.2

Define magnetic lines of force

Chapter: [4.02] Magnetic Effects of Current
Concept: Magnetic Force

Write any three properties of magnetic lines of force.

Chapter: [3.02] Magnetism and Matter
Concept: The Bar Magnet
[2]2.3

Differentiate between Normal elements and Transition elements.

Chapter: [1.05] Periodic Classification of Elements
Concept: Position of Elements and Trends in the Modern Periodic Table
[2]2.4

Classify the given sources of water pollution as natural and manmade:

(1) domestic waste
(2) dead animals
(3) oil spills
(4) ashes released due to forest fires

Chapter: [5] Pollution
Concept: Sources of Pollution and Major Pollutant - Water
[2]2.5

An object is held 20 cm away from a converging lens of focal length 10 cm. Find the position of the image formed.

Chapter: [3] Natural Phenomena
Concept: Lens Formula and Magnification
[2]2.6

What do you understand by the term Scattering of light?

Chapter: [7] Wonders of Light 2
Concept: Some Natural Phenomena Due to Sunlight
[15]3 | Solve any five of the following questions:
[3]3.1

Define corrosion.

Chapter: [1.01] Chemical Reactions
Concept: Chemical Reactions - Types of Chemical Reactions - Oxidation and Reduction

What is meant by rust?

Chapter: [1.01] Chemical Reactions
Concept: Chemical Reactions - Types of Chemical Reactions - Oxidation and Reduction

Write the chemical formula of rust.

Chapter: [1.01] Chemical Reactions
Concept: Chemical Reactions - Types of Chemical Reactions - Oxidation and Reduction
[3]3.2

Complete the following table:

Instrument Number of Convex
Lenses
Use
Simple Microscope .............. ..............
Compound Microscope .............. ..............
Telescope .............. ..............
Chapter: [3] Natural Phenomena
Concept: Refraction of Light - Image Formation by Lenses - Convex Lens
[3]3.3
[1]3.3.1

What do you do in the following situations:

Exposed to exhaust fumes in traffic.

Chapter: [8] Striving for better Environment 1
Concept: Effects of Air Pollution
[1]3.3.2

What do you do in the following situations:

Exposed to a series of firecrackers with high sound level.

Chapter: [8] Striving for better Environment 1
Concept: Noise Pollution and Effects
[1]3.3.3

What do you do in the following situations:

Get turbid drinking water during monsoon.

Chapter: [8] Striving for better Environment 1
Concept: Water Pollution
[3]3.4

Label the four parts of an electric motor

Chapter: [4.02] Magnetic Effects of Current
Concept: Electric Motor

write two uses of DC motor

Chapter: [5] All about Electromagnetism
Concept: Electric Generator - DC
[3]3.5

State any three demerits of Mendeleev’s periodic table.

Chapter: [1.05] Periodic Classification of Elements
Concept: Mendeleev’s Periodic Table
[3]3.6
[1]3.6.1

Draw the electrical symbols of the following components and state its use

Wire crossing

Chapter: [4.01] Effects of Current
Concept: Electric Current and Circuit
[1]3.6.2

Draw the electrical symbols of the following components and state its use:

Rheostat (variable resistance)

Chapter: [4.01] Effects of Current
Concept: Electric Current and Circuit
[1]3.6.3

Draw the electrical symbols of the following components and state its use:

Ammeter.

Chapter: [4.01] Effects of Current
Concept: Electric Current and Circuit
[5]4 | Answer any one of the following questions:
[5]4.1

Observe the following figure and answer the questions given under it:

1) How many times does refraction take place in the above figure?

2) What happens to the ray of light when it passes from air to glass?

3) What happens to the ray of light when it passes from glass to air?

4) What are the rays AB and CD in the figure called?

5) Define refraction.

Chapter: [7] Wonders of Light 2
Concept: Refraction of Light - Refraction Through a Rectangular Glass Slab
[5]4.2
[3]4.2.1

Find the expression for the resistivity of a material and state the SI unit of resistivity.

Chapter: [11] Current Electricity
Concept: Ohm’s Law
[2]4.2.2

Observe the following figure:

If the current in the coil A is changed, will some current be induced in the coil B? Explain.

Chapter: [4.02] Magnetic Effects of Current
Concept: Force on a Current- Carrying Conductor in a Magnetic Field
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