Class 10th science notes

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Class 10th science notes

25 Nov, 11:06

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Class 10th science notes

20 Nov, 21:08

Date_Sheet_Main_Exam_2025_20112024_241120_215450.pdf

7.6Мб

10th and 12th Final exam date sheet

All study materials - https://freebookscluster.blogspot.com

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Class 10th science notes

14 Nov, 10:37

🔹 Maths NCERT NICHOOD 🟩

NCERT NICHOOD - Most Important Questions with NCERT Line by line Notes

☺️ Chapter 1 Real Numbers
☺️ Chapter 2 Polynomials
☺️ Chapter 3 Pair of Linear Equations in Two Variables
☺️ Chapter 4 Quadratic Equations
☺️ Chapter 5 Arithmetic Progressions
☺️ Chapter 6 Triangles
☺️ Chapter 7 Coordinate Geometry
☺️ Chapter 8 Introduction to Trigonometry
☺️ Chapter 10 Circles
☺️ Chapter 11 Constructions
☺️ Chapter 12 Areas Related to Circles
☺️ Chapter 13 Surface Areas and Volumes
☺️ Chapter 14 Statistics
☺️ Chapter 15 Probability

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Class 10th science notes

8 Nov, 21:56

✅ Science NCERT NICHOOD 🟩

NCERT NICHOOD - Most Important Questions with NCERT Line by line Notes

🔹 Chapter 1 – Chemical reactions and equations
🔹 Chapter 2 – Acids, Bases and Salt
🔹 Chapter 3 – Metals and Non-metals
🔹 Chapter 4 – Carbon and Its Compounds
🔹 Chapter 5 – Life Processes
🔹 Chapter 6 – Control and Coordination
🔹 Chapter 7 – How Do Organisms Reproduce?
🔹 Chapter 8 – Heredity and Evolution
🔹 Chapter 9 – Light Reflection and Refraction
🔹 Chapter 10 – The Human Eye and Colourful World
🔹 Chapter 11 – Electricity
🔹 Chapter 12 – Magnetic Effects of Electric Current
🔹 Chapter 13 – Our Environment

🔻Click on chapter name which pdf you want

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Class 10th science notes

29 Oct, 07:02

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Class 10th science notes

16 Oct, 09:05

Science Case study and assertions and reason questions .pdf

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Science Case study based questions and Assertion and reason with Answers

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Class 10th science notes

14 Oct, 21:44

Question 1- Mention the type of chemical reaction that takes place and Write the chemical equation for each reaction when:
(i) A magnesium ribbon is burnt in air
(ii) Limestone is heated
(iii) Silver bromide is exposed to sunlight
(iv) Electricity is passed through acidified water
(v) Ammonia and hydrogen chloride are mixed with each other.

PYQ - 5 Marks

Answer 1-
(i) When A magnesium ribbon is burnt in air
2Mg(s) + O2(g) → 2MgO(s): Combination Reaction
(ii) When Limestone is heated
CaCO3(s) → CaO(s) + CO2(g): Thermal Decomposition Reaction
(iii) When Silver bromide is exposed to sunlight
2AgBr(s) → 2Ag(s) + Br2: Photolytic Decomposition Reaction
(iv) When Electricity is passed through acidified water
2H2O(l) → 2H2(g) + O2(g): Electrolytic Decomposition reaction
(v) When Ammonia and hydrogen chloride are mixed with each other.
NH3(g) + HCl(g) → NH4Cl(s): Combination Reaction

Question 2- Take 3 g of barium hydroxide in a test tube, now add about 2 g of ammonium chloride and mix the contents with the help of a glass rod. Now touch the test tube from outside.
(i) What do you feel on touching the test tube?
(ii) State the inference about the type of reaction occurred.
(iii) Write the balanced chemical equation of the reaction
involved.
PYQ - 3 Marks
Answer 2-
(i) The test tube becomes cooler during the reaction because
the reaction is endothermic (absorbs heat from
surrounding).
(ii) During the reaction, heat is absorbed. Hence, this reaction is
an endothermic reaction. These reactions cause a cooling
effect by lowering the temperature of their surroundings.
(iii) The balanced chemical equation of the reaction involved is
as follows: Ba(OH)2 + 2NH4Cl + Heat → BaCl2 + 2NH3 + 2H2O

Question 3 -
a. How is zygote formed?
b. State the functi

on of placent

in the mother’s body.
c. At what interval the egg is formed in human female ovary?
d. Name two STDs caused by bacterial infection.
e. Why is prenatal sex determination prohibited?
PYQ - 5 Marks
Answer 3-
a. Zygote is formed by the fusion of male and female gamete.
b. Placenta is a special tissue through which the developing embryo/foetus gets nutrition from mother’s blood. It also transports wastes of the embryo into mother’s blood.

c. Ovulation releases mature ovum from ‘ the ovary. It happens once during a menstrual cycle that is for roughly 28 days.
d. STDs caused by bacterial infection are Gonorrhoea and Syphilis.
e. Prenatal sex determination is misused and it may be the reason for female foeticide.

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Class 10th science notes

14 Oct, 21:39

To burn natural gas, we need to supply some amount of heat. Which of the following is correct regarding burning of natural gas?

Опрос

It produces hydrogen gas
It produces sulphuric acid
It is an endothermic process
It is an exothermic process

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Mindmap PDFs Download

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Class 10th science notes

14 Oct, 21:37

When hydrogen sulphide gas is passed through a blue solution of copper sulphate, a black precipitate of copper sulphide is obtained, and the sulphuric acid so formed remains in the solution. The reaction is an example of a:

Опрос

Combination reaction
Displacement reaction
Decomposition reaction
Double displacement reaction

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Handwritten Notes PDFs

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Class 10th science notes

14 Oct, 21:35

In a double displacement reaction such as reaction b/w sodium sulphate solution & barium chloride solution I. Exchange of atoms take place II. Exchange of ions take place III. A precipitate is produced IV. An insoluble salt is produced correct option is:

Опрос