Practice Quiz for CBSE 10th Science
Cbse class 10
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The fuse in an electric circuit is connected in:
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Assertion (A): Resistance of a conductor increases with an increase in temperature.Reason (R): The number of free electrons decreases with an increase in temperature.
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Assertion (A): Photosynthesis occurs only in the presence of sunlight.Reason (R): Light energy is essential for the synthesis of ATP and NADPH during photosynthesis.
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Assertion (A): Ethanol is completely soluble in water.Reason (R): Ethanol is an ionic compound.
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Assertion (A): Sodium is stored in kerosene.Reason (R): Sodium reacts vigorously with oxygen and moisture present in air.
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Assertion (A): The sky appears blue during the day.Reason (R): Blue light has a shorter wavelength and is scattered more than other colors.
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Assertion (A): Aqueous solutions of all acids conduct electricity.Reason (R): Acids ionize in water to produce hydrogen ions, which help in conduction.
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Assertion (A): Rusting of iron is an example of a redox reaction.Reason (R): Rusting occurs due to the reaction of iron with oxygen and water, forming hydrated iron (III) oxide.
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Wrong shortcode initializedAssertion (A): Photosynthesis occurs only in the presence of sunlight.Reason (R): Light energy is essential for the synthesis of ATP and NADPH during photosynthesis.
Wrong shortcode initialized
10 / 30
The magnetic field inside a long straight solenoid is:
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12 / 30
A person suffering from myopia should use:
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Which of the following causes the twinkling of stars?
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Which mirror is used as a shaving mirror?
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The focal length of a convex mirror is:
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In which type of reproduction is offspring genetically identical to the parent?
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Which part of the brain controls balance and coordination?
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Which hormone is responsible for growth in plants?
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The excretory unit of the kidney is called:
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Which of the following is NOT a function of the human digestive system?
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Elements of the same group have:
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In the Modern Periodic Table, elements are arranged in order of:
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Ethanol is commonly known as:
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Which of the following is NOT an allotrope of carbon?
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Which non-metal is a good conductor of electricity?
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Which of the following metals is the most reactive?
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What is the pH of a neutral solution?
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Which of the following acids is present in vinegar?
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Which of the following is a balanced chemical equation?
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What type of reaction is the following?2Mg+O2→2MgO
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