SSC (English Medium)
SSC (Marathi Semi-English)
Academic Year: 2023-2024
Date & Time: 25th July 2024, 11:00 am
Duration: 2h
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Note:
- All the questions are compulsory.
- Use of a calculator is not allowed.
- The numbers to the right of the questions indicate full marks.
- In case of MCQs [Q. No. 1(A)] only the first attempt will be evaluated and will be given credit.
- For each MCQ, the correct alternative (A), (B), (C) or (D) with the subquestion number is to be written as an answer.
For e.g.: (i) (A), (ii) (B), (iii) (C) - Scientifically correct, labelled diagrams should be drawn wherever necessary.
In modern periodic table, the non-metals are found in ______.
s-block
p-block
d-block
f-block
Chapter:
\[\ce{CuSO4_{(aq)} + Zn_{(s)} -> ZnSO4_{(aq)} + Cu_{(s)}}\]
This is ______ type of chemical reaction.
displacement
double displacement
combination
decomposition
Chapter:
The unit of electrical power is _______.
volt
watt
joule
ampere
Chapter: [4] Effects of Electric Current [14] The Electric Spark
We can see the sun even when it is little below the horizon because of ______.
Reflection of light
Refraction of light
Dispersion of light
Absorption of light
Chapter: [6] Refraction of Light [17] Wonders of Light 2
_______ is one of the combustible components of L.P.G.
Methane
Ethane
Propane
Butanol
Ethene
Chapter:
Find the odd one out:
Myopia
Presbyopia
Hypermetropia
Retina
Chapter:
What is the angle of refraction when the angle of incidence is 0°?
Chapter:
Name two appliances which work on the principle of magnetic effect of electric current.
Chapter:
Write scientific reason.
Sodium is always kept in kerosene.
Chapter:
Give a scientific reason.
Simple microscope is used for watch repairs.
Chapter: [7] Lenses [16] Wonders of Light 1
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Give a scientific reason.
It is necessary to manage the space debris.
Chapter:
The absolute refractive index of water is 1.33. What is the velocity of light in water?
(Velocity of light in vacuum = 3 x 108 m/s)
Chapter:
Observe the figure and answer the questions given below:
- Name the phenomenon shown in the figure.
- Define the above phenomenon.
Chapter:
Rearrange the Column 2 and 3 so as to match with the Column 1.
| Column 1 | Column 2 | Column 3 |
| (1) Triad | Concentrated mass and +ve charge | Thomson |
| (2) Octave | Average of the atomic masses of first and third elements | Newlands |
| Properties of the eighth element are similar to first | Dobereiner |
Chapter:
What information will you get from the given reaction?
\[\ce{CaCO3_{(s)} ->[Δ] CaCO_{(s)} + CO2↑}\]
Chapter:
Observe the following ray diagram and answer the questions given below:
- Identify the instrument shown in the diagram. (1)
- What is the combined effect of two lenses? (1)
- Write the use of the above instrument. (1)
Chapter:
Read the following paragraph and answer the questions given below:
| Rainbow is a beautiful natural phenomenon. It is the combined effect of dispersion, refraction and total internal reflection of light. It can be seen mainly after rainfall. Small droplets of water act as small prisms. When light rays from the sun enter these droplets it gets refracted and dispersed. Then there is internal reflection and after that once again the light gets refracted while coming out of the droplet. All these three processes together produce the rainbow. |
- Which three major phenomena are responsible for rainbow formation? (1)
- How does refraction take place? (1)
- Draw a diagrammatic representation of rainbow production. (1)
Chapter:
From the elements of second period of the modern periodic table given below, answer the following question:
Name the elements in which both the shells are completely filled with electrons.
Chapter:
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From the elements of second period of the modern periodic table given below, answer the following question:
Name the element which has same number of electrons in both the shells.
Chapter:
From the elements of second period of the modern periodic table given below, answer the following question:
Which is the most electropositive element in this period?
Chapter:
Explain on which factors does the value of acceleration due to gravity g depend.
Chapter:
Explain the following term:
Metallurgy
Chapter: [8] Metallurgy
Explain the following term:
Gangue
Chapter: [8] Metallurgy
Give the name of the satellite series actively working in the field of telecommunication, television, and meteorological services developed by India.
Chapter:
Give the name of the satellite series specially working in the field of education developed by India.
Chapter:
Give the name of the Satellite series to exactly locate the position of any place on the earth’s surface developed by India.
Chapter:
What do you mean by anomalous behaviour of water?
Chapter:
What is the role of the anomalous behaviour of water in preserving aquatic life in regions of cold climate?
Chapter:
Observe the following diagram and answer the questions given below:
- Identify the above diagram. (1)
- Write the principle on which the above appliance works. (1)
- Write the working of the above appliance. (2)
- Write the use of the above appliance. (1)
Chapter: [4] Effects of Electric Current
Read the following paragraph and answer the questions given below:
|
Carbon compounds contain many elements. The element hydrogen is present to a smaller or larger extent in majority of carbon compounds. The compounds which contain carbon and hydrogen as the only two elements are called hydrocarbons. Hydrocarbons are the simplest and the fundamental organic compounds. The smallest hydrocarbon is methane (CH4), formed by combination of one carbon atom and four hydrogen atoms. We have already seen the structure of methane. Ethane is one more hydrocarbon. Its molecular formula is C2H6. The carbon compounds having a double bond or triple bond between two carbon atoms are called unsaturated compounds. Ethene and ethyne are unsaturated hydrocarbons. The unsaturated hydrocarbons containing a carbon-carbon double bond are called ‘Alkenes’. The unsaturated hydrocarbons whose structures contain a carbon-carbon triple bond are called ‘Alkynes’. Generally the unsaturated compounds are more reactive than the saturated compounds. |
- What is meant by hydrocarbon? (1)
- Name the smallest hydrocarbon. (1)
- Define unsaturated compound. (1)
- Differentiate between Alkene and Alkyne. (2)
Chapter:
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