Class 10 Chemistry - Different types of Chemical Reactions #class10Science #class10Chemistry #eduvictors

Class 10 Chemistry - Different types of Chemical Reactions

Question: What are different types of chemical reactions?

Answer: 

There are several different types of chemical reactions, including:

CBSE Class 10 - Case Study Based Question #class10Science #class10Chemistry #eduvictors

CBSE Class 10 - Case Study Based Question

Study the following case study and answer the questions given below:

Water is a simple molecule consisting of one oxygen atom bonded to two different hydrogen atoms. Because of the higher electronegativity of the oxygen atom, the bonds are polar covalent (polar bonds). The oxygen atom attracts the shared electrons of the covalent bonds to a significantly greater extent than the hydrogen atoms. The molecule has a bent structure, the H—O—H bond angle is about 105°.

CBSE Class 10 - Science (MCQs) #class10ScienceQuiz #ntse #eduvictors

 CBSE Class 10 - Science (MCQs)

Q1. In which of the following, heat energy will be evolved?

(a) Electrolysis of water

(b) Dissolution of NH4Cl in water

(c) Burning of L.P.G.

(d) Decomposition of AgBr in the presence of sunlight

CBSE Class 10 - Chemistry - Redox Reactions - Questions and Answers #class10Chemistry #class10Science #cbseclass10

CBSE Class 10 - Chemistry - Redox Reactions - Questions and Answers

Q1. What is oxidation?

Answer: Addition of oxygen or removal of hydrogen from a compound is known as oxidation.

Elements or compounds in which oxygen or non-metallic element is added or hydrogen or metallic element is removed are called to be oxidized.

CBSE Class 10 - Chemistry - Metals and Non-Metals - Important Points You Should Know #eduvictors #class10Science #Metals #NonMetals

Metals and Non-Metals - Important Points You Should Know 

CBSE Class 10 - Chemistry

1. At present about 118 elements are known.

2. Elements can be divided into two main groups: metals and non-metals.

3. Elements which form positive ions by losing electrons are called metals. Thus, metals are the elements which have the tendency to lose electrons.

Class 10 Chemistry - Acids and Their Properties #class10Chemistry #eduvictors

Class 10 Chemistry - Acids and Their Properties

In this video and subsequent videos, we will focus on Acids and its properties. We'll learn about 

- What are Acids?

- What is the role of acid in our life?

- How acids are classified?

CBSE Class 10 - Science Syllabus (2022-23) - Chapters Deleted or Reduced #Class10Science #cbseSyllabus2022-23 #eduvictors

 CBSE Class 10 - Science Syllabus (2022-23) - Chapters Deleted or Reduced  

CBSE Syllabus for Academic Year 2022-23 is available here.

CH-1: Chemical Reactions and Equations

Deleted- Corrosion and Rancidity (Pg-13)

CH-2: Acids, Bases and Salts

No Reduction

Class 10 Biology - Reproduction - Important Differences (You Should Know) #class10Science #eduvictors

Biology - Reproduction - Important Differences

Here is a list of important differences related to the Asexual mode and the Sexual Mode of reproduction, commonly asked in examinations.

 

Binary Fission vs Multiple Fission

CLASS IX-X: DELETED CHAPTERS IN MATHS AND SCIENCE IN SYLLABUS (2022-23) 

Please note the Board will conduct the annual scheme of assessment at the end of the Academic Session 2022-23

Class 9 Science

Deleted Chapters:

- DIVERSITY IN LIVING ORGANISMS

- NATURAL RESOURCES

- WHY DO WE FALL ILL?

Chapter: NATURAL RESOURCES will be taught in the class and  students are encouraged to prepare a brief write up on any concept of this chapter in their Portfolio (internal assessment)

Class 10 Biology - Heredity (Worksheet) #heredity #class10Biology #eduvictors #worksheets

Class 10 Biology - Heredity (Worksheet)

Fill in the blanks with suitable word(s).

1. The generation resulting immediately from a cross of the first set of parents is called ____________.

2. All cells forming the body of an organism, except the reproductive cells are called _________ cells.

3. A type of crossing in which only one pair of contrasting characters is considered is called _________ cross.

CBSE Class 10 Science - Term 2 - Sample Question Paper (2021-22) #cbseTerm2 #cbsepapers #class10Science #eduvictors

CBSE Class 10 Science - Term 2 - Sample Question Paper (2021-22) 

Maximum Marks: 50 (40 Theory Paper + 10 Marks Internal Assessment)

Duration: 2 Hours

Weightage Per Paper:

Physics: 12 Marks

Chemistry: 10 Marks

Biology: 18 Marks 

CBSE Class 10 Chemistry - Carbon and Its Compounds - Very Short Answer Based Questions on Allotropes (Part -2) #class10Chemistry #cbseTerm2 #eduvictors #carbonallotropes

CBSE Class 10 Chemistry - Carbon and Its Compounds - Very Short Answer Based Questions on Allotropes (Part -2)

Q1: What is the atomic number of a carbon atom?

Answer: 6

Q2: How many valence electrons are present in a carbon atom?

Answer: 4 (electronic configuration is K:2 L:4)

Q3: What are allotropes?

Answer: The property due to which one element exists in more than one form, which differs in physical properties but has similar chemical properties. These forms of an element are called allotropes.

CBSE Class 10 - Physics - Light - Reflection and Refraction (MCQs)#eduvictors #class10Physics #cbseterm1

CBSE Class 10 - Physics - Light - Reflection and Refraction (MCQs)

Q1: The laws of reflection hold true for:

(a) plane mirrors only

(b) concave mirrors only

(c) convex mirrors only

(d) all reflecting surfaces

Q2: Focal length of a plane mirror is 

(a) zero

(b) infinite

(c) 25 cm

(d) -25 cm

CBSE Class 10 - Biology - Life Processes MCQs (#class10Biology)(#Class10Term1MCQs)(#class10Science)(#eduvictors)

CBSE Class 10 - Biology - Life Processes MCQs 

Q1: Which activity is basic to living beings?

(a) Reproduction

(b) Locomotion

(c) Molecular Movement

(d) Adaptation

Class 10 Chemistry - Acid, Bases and Salts (Worksheet) (#class10Chemistry)(#cbse2021)(#cbseTerm1)(#eduvictors)(#class10WorkSheet)

Class 10 Chemistry - Acid, Bases and Salts (Worksheet)

Fill in the blanks with suitable words

1. An acid is a compound which when dissolved in water gives _________ ions as the only _________ ions.

2. Higher the pH value of a solution, the more __________ it is.

3. pH value of lemon juice is _________ than 7.

Chemistry - Colours Of Compounds For CBSE Class 12, 11, 10 and 9 (#class12Chemistry)(#class11Chemistry)(#ntse)(#neet)(#eduvictors)

 Chemistry - Colours Of Compounds For CBSE Class 12, 11, 10 and 9 

Salts/Compounds     Colour

1. Potassium dichromate, K₂Cr₂O₇ Orange

2. Potassium permanganate, KMnO₄ Violet

3. Ferric tetra-oxide, Fe₃O₄ Black

4. Ferrous sulphate, FeSO₄.7H₂O Green

5. Ferric sulphate, Fe₂(SO₄)₃ Yellow

6. Ferric hydroxide, Fe(OH)₂ Green

CBSE Class 10 Physics - Electricity (1 Mark Based Questions and Answers) Part-1 (#class10Science)(#class10Physics)(#eduvictors)(#cbse2021)

CBSE Class 10 Physics - Electricity (1 Mark Based Questions and Answers) Part-1

Q1: By what other name is the unit joule/coulomb called ?

Answer: Volt

Q2: Which of the following statements correctly defines a volt ? 

(a) a volt is a joule per ampere.

(b) a volt is a joule per coulomb.

Answer: (b) a volt is a joule per coulomb.

Q3: (a) What do the letters p.d. stand for ?

    (b) Which device is used to measure p.d. ? 

Answer:

(a) p.d. stands for potential difference.

(b) Voltmeter is used to measure p.d.

CBSE Class 10 Biology - Questions and Answers Related to Activity To Show Chlorophyll is Necessary For Photosynthesis (#class10Biology)(#class10Science)(#eduvictors)

CBSE Class 10 Biology - Questions and Answers Related to Activity To Show Chlorophyll is Necessary For Photosynthesis

Chapter: Life Processes (NCERT Book Activity 6.1)

Activity Steps

Step 1: Take a potted plant with variegated leaves – for example, a money plant or croton.

Step 2: Keep the plant in a dark room for three days so that all the starch gets used up.

Step 3: Now keep the plant in sunlight for about six hours.

Step 4: Pluck a leaf from the plant. Mark the green areas in it and trace them on a sheet of paper.

Step 5:  Dip the leaf in boiling water for a few minutes.

Step 6:  After this, immerse it in a beaker containing alcohol.

Step 7: Carefully place the above beaker in a water bath and heat till the alcohol begins to boil.

What happens to the colour of the leaf? What is the colour of the solution?

Step 8: Now dip the leaf in a dilute solution of iodine for a few minutes.

Take out the leaf and rinse off the iodine solution.

Observe the colour of the leaf and compare this with the tracing of the leaf done in the beginning.

What can you conclude about the presence of starch in various areas of the leaf?

CBSE Class 10 - Chemistry - Periodic Classification Of Elements (Very Short Answer Based Questions)(#class10Chemistry)(#cbsenotes)(#eduvictors)

Class 10 - Chemistry - Periodic Classification Of Elements (Very Short Answer Based Questions)

Q1: What is the basis of classification of elements in the modern periodic table?

Answer: Atomic number

Q2: The Law of Octaves was applicable only upto which element?

Answer: Calcium

Q3: Which important property did Mendleev use to classify the elements in the periodic Table?

Answer: He used atomic masses of elements in classifying elements.

Class 10 Science Preboard Sample Question Paper (Set-4) 2020-21(#cbsepapers)(#class10Science)(#eduvictors)

Class 10 Science Preboard Sample Question Paper  (Set-4) 2020-21

Learning is a continual process. To improve scores, the best way is to learn and practice. Solving question papers help students to evaluate their knowledge and familarise with different types of question patterns being asked in examination. 

Eduvictors provides CBSE Previous Year Papers and Sample Question Papers for Class Class 10 Maths, Science, Social, English, Hindi and Sanskrit with/without solutions to help students in their board exam preparation.

1. Buy Most Likely Question Bank - Science: CBSE Class 10 for 2021 Examination

2. Buy 10 Last Years Solved Papers: CBSE Class 10 for 2021 Examination

3. Buy CBSE All In One Science Class 10 for 2021 Exam

Here attached the Science Sample Question Paper (2020-2021).