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Explore Class 10 Compulsory Science and Technology past and model questions by chapter, year, marks and question type.
322 questions found
Write any two characteristics of the division of Marchantia.
Test the validity of by unit-wise analysis.
In the given graph of future of the universe, what type of universe does 'B' represent?

The temperature of 800 g of metal is and it is placed in 1.5 kg water at . If both of them acquire the temperature of , calculate the specific heat capacity of the metal.
What is meant by the anomalous expansion of water? Write any one effect of it in daily life.
Write any two differences between the given two chemical equations.
a.
b.
The graph shows the relation between velocity and distance of celestial bodies. Write the equation related to this graph. To which study is the graph related?

Study the given figures and write any two differences between them on the basis of defect of vision.

Hydrocarbon | Bond | Chemical nature | Additional name |
Saturated | Single covalent | Y | Paraffins |
Unsaturated | X | Unstable and more reactive | Olefins |
Given below is a notice published by Police Headquarters, Cyber Bureau. Activities such as unknown persons blackmailing people to send obscene photos and videos by saying 'I'm calling from cyber security' or 'I'm speaking from cyber police program', and posting them on social media for character assassination.
Study the given table.

The following results were obtained when the blood samples of four people were tested.
Person | Results |
A | less RBC |
B | more WBC |
C | less platelets |
D | high sugar |
Show with a suitable ray diagram, the conditions for total internal reflection.
The value of output voltage is 10 times less than input voltage in the given figure.

Write any two differences between s-block elements and p-block elements.
Study the given diagram and answer the following questions.

If Y is a metal, what is its valency in given product of the chemical equation?
Two plants are shown in the picture.

On which principle does Hydraulic brake work?
Write any one function of RBC.