Class 10 Science

Poll

Harsh Tyagi

Asked: December 8, 2021In: Class 10 Science

Terrestrial organisms use ____________ for respiration.

Class 10th Science Session 2022-23 Class 10 Science Terminal Exams MCQ Solutions Class X Science MCQ Extra Questions Answers 10th Science Terminal Exam Based MCQ Extra Questions

Poll

Prakhar Raj

Asked: December 8, 2021In: Class 10 Science

Electrolysis of water is a decomposition reaction. The mole ratio of hydrogen and oxygen gases liberated during electrolysis of water is:

You must know that during electrolysis the water decomposes to make hydrogen and oxygen gases in the ratio 2:1 by volume, respectively. As 2H₂O (l) + Electric current → 2H₂(g) + O₂ (g)

Poll

Prakhar Raj

Asked: December 8, 2021In: Class 10 Science

In the double displacement reaction between aqueous potassium iodide and aqueous lead nitrate, yellow precipitate of lead iodide is formed. While performing the activity if lead nitrate is not available, which of the following can be used in place of Lead Nitrate?

Class 10th Science Session 2022-23 Class 10 Science Terminal Exams MCQ Solutions Class X Science MCQ Extra Questions Answers 10th Science Terminal Exam Based MCQ Extra Questions

Poll

Himanshu basu

Asked: December 8, 2021In: Class 10 Science

Which of the following reactions is an endothermic reaction?

The reaction which require energy in the form of heat, light or electricity to break reactants are called endothermic reactions.

Poll

Kelash Bavaija

Asked: December 7, 2021In: Class 10 Science

The reaction in which a substance or substances undergo change to produce new substances with new properties is called.

Class 10 Science Terminal Exams MCQ Solutions Class X Science MCQ Extra Questions Answers 10th Science Terminal Exam Based MCQ Extra Questions Class 10th Science Session 2022-23

Category: Class 10 Science

Terrestrial organisms use ____________ for respiration.

Electrolysis of water is a decomposition reaction. The mole ratio of hydrogen and oxygen gases liberated during electrolysis of water is:

In the double displacement reaction between aqueous potassium iodide and aqueous lead nitrate, yellow precipitate of lead iodide is formed. While performing the activity if lead nitrate is not available, which of the following can be used in place of Lead Nitrate?

Which of the following reactions is an endothermic reaction?

The reaction in which a substance or substances undergo change to produce new substances with new properties is called.

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