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Questions and Answers
When lead nitrate and potassium iodide are mixed, what yellow precipitate is formed?
When lead nitrate and potassium iodide are mixed, what yellow precipitate is formed?
What is the process responsible for the strong smell from mint after some days?
What is the process responsible for the strong smell from mint after some days?
What is the pH of a neutral solution?
What is the pH of a neutral solution?
What is the ability of metals to be drawn into thin wires known as?
What is the ability of metals to be drawn into thin wires known as?
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In which of the following is tartaric acid found?
In which of the following is tartaric acid found?
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During the electrolytic refining of copper, what is the cathode made of?
During the electrolytic refining of copper, what is the cathode made of?
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Which of the following is an involuntary action?
Which of the following is an involuntary action?
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Which disease is caused due to sexual contact?
Which disease is caused due to sexual contact?
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What is the human called that has XY chromosomes?
What is the human called that has XY chromosomes?
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Which material cannot be used to make a lens?
Which material cannot be used to make a lens?
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What is the mode of reproduction in Spirogyra?
What is the mode of reproduction in Spirogyra?
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What color would the sky appear when seen from the moon?
What color would the sky appear when seen from the moon?
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What instrument is used to protect electric circuits from short-circuiting and overloading?
What instrument is used to protect electric circuits from short-circuiting and overloading?
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Which metal is used in making the filament of an electric bulb?
Which metal is used in making the filament of an electric bulb?
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Which of the following is non-biodegradable?
Which of the following is non-biodegradable?
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What is the molecular formula of ozone?
What is the molecular formula of ozone?
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Match the following with their correct terms:
Match the following with their correct terms:
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Match the following with their correct terms:
Match the following with their correct terms:
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Match the following with their correct terms:
Match the following with their correct terms:
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Match the following diseases with their mode of transmission:
Match the following diseases with their mode of transmission:
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Match the following materials with their primary usage in optics:
Match the following materials with their primary usage in optics:
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Match the following human body parts with their respective functions:
Match the following human body parts with their respective functions:
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Match the following scientific phenomena with their correct explanations:
Match the following scientific phenomena with their correct explanations:
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Why should a magnesium ribbon be rubbed before burning in the air
Why should a magnesium ribbon be rubbed before burning in the air
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Study Notes
Chemical Reactions
- When lead nitrate and potassium iodide are mixed, a yellow precipitate of lead iodide is formed.
Biology
- The strong smell from mint after some days is due to the process of fermentation.
Acids and Bases
- The pH of a neutral solution is 7.
Metals
- The ability of metals to be drawn into thin wires is known as ductility.
Food Chemistry
- Tartaric acid is found in grapes.
Electrolysis
- During the electrolytic refining of copper, the cathode is made of pure copper.
Human Physiology
- An involuntary action is a reflex action.
Sexually Transmitted Diseases
- Sexually transmitted diseases (STDs) are caused by sexual contact.
Human Genetics
- A human with XY chromosomes is a male.
Optics
- Wood cannot be used to make a lens.
Botany
- The mode of reproduction in Spirogyra is fragmentation.
Astronomy
- The sky would appear black when seen from the moon.
Electrical Circuits
- A fuse is an instrument used to protect electric circuits from short-circuiting and overloading.
Electric Bulbs
- Tungsten is used in making the filament of an electric bulb.
Environmental Science
- Plastic is a non-biodegradable material.
Chemistry
- The molecular formula of ozone is O₃.
Matching Terms
- Various matches:
- Lead iodide: yellow precipitate
- Fermentation: strong smell from mint
- pH 7: neutral solution
- Ductility: ability to be drawn into thin wires
- Grapes: tartaric acid
- Pure copper: cathode in electrolytic refining
- Reflex action: involuntary action
- Sexual contact: STDs
- XY chromosomes: male human
- Wood: cannot be used to make a lens
- Fragmentation: mode of reproduction in Spirogyra
- Black: sky color from the moon
- Fuse: protects electric circuits
- Tungsten: filament material in electric bulb
- Plastic: non-biodegradable
- O₃: molecular formula of ozone
Studying That Suits You
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Description
Test your knowledge with this model test paper for Science Class 10th. Answer multiple choice questions covering topics such as chemical reactions, pH, and more.
