Ask questions which are clear, concise and easy to understand.
Ask QuestionPosted by Shashwat Singh 7 years, 6 months ago
- 4 answers
Posted by Anshika Yadav 7 years, 6 months ago
- 1 answers
Sonali Aggarwal 7 years, 6 months ago
The Tyndall effect is the scattering of light as a light beam passes through a colloid. The individual suspension particles scatter and reflect light, maeking the beam visible.
Posted by Diyaba Rahevar 7 years, 6 months ago
- 1 answers
Yogita Ingle 7 years, 6 months ago
The distance between seed is important because if seeds are not sown at proper distance there will be a competition between the plants for consuming sunlight, water and space which leads to the improper growth of plants and also damages the whole crop.
Posted by Saurav Singh 7 years, 6 months ago
- 1 answers
Diyaba Rahevar 7 years, 6 months ago
Posted by Diyaba Rahevar 7 years, 6 months ago
- 1 answers
Saurav Singh 7 years, 6 months ago
Posted by Harshika Singh 7 years, 6 months ago
- 1 answers
Posted by Insha Javed 7 years, 6 months ago
- 1 answers
Yogita Ingle 7 years, 6 months ago
When there are two types of monomers joining to make a polymer, that type of polymer is known as a copolymer. This is also known as heteropolymer. Two monomers can join in any fashion to make a polymer. Based on these joining variations, copolymers can be categorized as follows.
- If the two monomers are arranged in an alternative way, it is known as an alternating copolymer. (for example, if the two monomers are A and B, they will arrange like ABABABABAB)
- If the monomers are arranged in any order like AABAAABBBBAB, it is known as random copolymer.
- Sometimes each monomer can join with the same type of monomers, and then the two blocks of homopolymers can join. This type is known as block copolymers (ex: AAAAAAABBBBBBB).
Posted by Ritika Vishwakarma 7 years, 6 months ago
- 0 answers
Posted by Vikash Giri 7 years, 6 months ago
- 1 answers
Yogita Ingle 7 years, 6 months ago
Adipose tissue : Fat-storing adipose tissue is found below the skin and between internal organs. The cells of this tissue are filled with fat globules. Storage of fats also lets it act as an insulator.
Permanent tissue- It is formed from the meristematic tissues, the cells in this tissue lose the ability to divide. They are further divided into –
• Parenchyma- It is composed of unspecialized living cells with relatively thin cell walls, intercellular space, present in soft part of the plants.
• Collenchyma- Composed of living and elongated cells with cell walls irregularly thickened at the corners. There is no inter-cellular space. It helps in bending of leaves and stems.
• Sclerenchyma- It is composed of long narrow, thick-walled cells. It is made of dead cells and there are no inter-cellular cells.
Posted by Jagriti Jaiswal 7 years, 6 months ago
- 1 answers
Meghna Thapar 5 years, 7 months ago
Steps Involved in Balancing a Chemical Equation:
Consider the chemical reaction between magnesium and oxygen to understand the steps involved in balancing a chemical equation.
Step 1:
Let us first write the word equation for this reaction.
Magnesium + Oxygen → Magnesium oxide
Step 2:
Write the chemical equation for the reaction between magnesium and oxygen.
Mg + O2 → MgO
Step 3:
Count the number of atoms of an element occurring on both L.H.S. and R.H.S. in this equation.
Mg + O2 → MgO
|
Component |
Reactant |
Product |
|
Magnesium |
1 |
1 |
|
Oxygen |
2 |
1 |
This is an unbalanced equation.
Step 4:
To balance a chemical equation, first draw boxes around each formula. Do not change anything inside the boxes while balancing the equation.
Choose a reactant or a product which has the maximum number of atoms in it.
In that compound, select the element which has the maximum number of atoms. In this equation we shall select MgO i.e. magnesium oxide and the element oxygen in it.
To balance the oxygen atoms, let us multiply magnesium oxide molecule by 2 on the right hand side.
|
Component |
Reactant |
Product |
|
Magnesium |
1 |
1 x 2 = 2 |
|
Oxygen |
2 |
1 x 2 = 2 |
Step 5:
There are two oxygen atoms on either side of the equation but one magnesium atom on the reactant's side and two on the product's side. Therefore, multiply the magnesium atom by 2 on the left hand side.
|
Component |
Reactant |
Product |
|
Magnesium |
1 x 2 = 2 |
2 |
|
Oxygen |
2 |
2 |
Therefore, the number of atoms of each element of reactants = The number of atoms of each element of products.
Step 6: Writing Specific Conditions on the Arrow
The reaction is carried out in the presence of ‘Heat’. On heating, magnesium combines with oxygen present in air to form magnesium oxide.
Step 7: Writing Symbols of Physical States
Using these steps, you can balance any chemical equation
Posted by Nitya Rastogi 7 years, 6 months ago
- 2 answers
Syed A. Nafeesa 7 years, 6 months ago
Sudeshna Sahoo 7 years, 6 months ago
Posted by Ayush Chalakh 7 years, 6 months ago
- 1 answers
Ishita Patel 7 years, 6 months ago
Posted by Sameer Singh 7 years, 6 months ago
- 2 answers
Ashwini Choudhary 7 years, 6 months ago
Ishita Patel 7 years, 6 months ago
Posted by Prince Yadav 7 years, 6 months ago
- 1 answers
Sonali Aggarwal 7 years, 6 months ago
Due to Deforestation forest cover is removed,hence water does not seep underground and flows off causing floods.
Posted by Diwang Mittal 7 years, 6 months ago
- 1 answers
Meghna Thapar 5 years, 7 months ago
- States of Matter:
On the basis of physical states, all the matter can be classified into three groups – solids, liquids and gases. Examples of solids, liquids and gases are:
- Sugar, sand, iron, wood, rocks, minerals and ice are the examples of solids.
- Water, milk, oil, kerosene, petrol and alcohol are liquids.
- Air, oxygen, hydrogen, carbon dioxide and steam are gases.
- The Solid State:
Properties of solids:
- Solids have a fixed shape and a fixed volume.
- Solids cannot be compressed much.
- Solids have high densities. They are heavy.
- Solids do not fill their container completely.
- Solids do not flow.
- The Liquid State:
Properties of liquids:
- Liquids have a fixed volume but they have no fixed shape.
- Like solids, liquids cannot be compressed much.
- Liquids have moderate to high densities. They are usually less dense than solids.
- They do not fill their container completely.
- They generally flow easily.
Properties of gases:
Gases have neither a fixed shape nor a fixed volume.
They can be compressed easily.
They have low densities.
They fill their container completely.
They flow easily.
Posted by Lavanya P 7 years, 6 months ago
- 1 answers
Posted by Lavanya P 7 years, 6 months ago
- 5 answers
Ishita Patel 7 years, 6 months ago
Sudeshna Sahoo 7 years, 6 months ago
Harleen Kaur 7 years, 6 months ago
Posted by Swayam Atram 7 years, 6 months ago
- 1 answers
Sonali Aggarwal 7 years, 6 months ago
Mixture of nitric acid and hydrochloric acid in molar ratio 1:3
Posted by Bhavesh Dubey 7 years, 6 months ago
- 1 answers
Posted by Kavyansh Dangi 7 years, 6 months ago
- 4 answers
Sudeshna Sahoo 7 years, 6 months ago
Syed A. Nafeesa 7 years, 6 months ago
Posted by Adiba Shamim 7 years, 6 months ago
- 1 answers
Meghna Thapar 5 years, 7 months ago
Symbiosis is a close relationship between two species in which at least one species benefits. For the other species, the relationship may be positive, negative, or neutral. There are three basic types of symbiosis: mutualism, commensalism, and parasitism. It is a type of interaction in which individuals of two different species or two population function in very close association but don't affect one another adversely and beneficially. ... Birds like robins and squirrels liking on the same tree and neither serves as food for the other nor has any direct interaction.
Posted by Ashwini Choudhary 7 years, 6 months ago
- 0 answers
Posted by Ashwini Choudhary 7 years, 6 months ago
- 5 answers
Posted by Syed A. Nafeesa 7 years, 6 months ago
- 2 answers
Posted by Kushagra Shreyas 7 years, 6 months ago
- 3 answers
Posted by Sneha Saha 7 years, 6 months ago
- 1 answers
Sonali Aggarwal 7 years, 6 months ago
Vacuole is a space in the cytoplasm of a cell which is enclosed by the membrane and usually contains substances dissolved in water.A vacuole appears as an empty space under the microscope.All the plant cells have a large vacuole filled with a liquid called cell sap,which contains dissolved sugars and salts.
Posted by Harshitha B H 7 years, 6 months ago
- 0 answers
Posted by Dhruv Dhruv 7 years, 6 months ago
- 6 answers
Ishita Patel 7 years, 6 months ago
Khushi Raj 7 years, 6 months ago
Posted by S.R Thakur 7 years, 6 months ago
- 1 answers
Priya Bhagoria 7 years, 6 months ago
Posted by Saeesh Waghmare 7 years, 6 months ago
- 2 answers
Ashwini Choudhary 7 years, 6 months ago
Sonali Aggarwal 7 years, 6 months ago
Blue-green algae, also known as Cyanobacteria, are a group of photosynthetic bacteria that many people refer to as "pond scum." Blue-green algae are most often blue-green in color, but can also be blue, green, reddish-purple, or brown. Blue-green algae generally grow in lakes, ponds, and slow-moving streams when the water is warm and enriched with nutrients like phosphorus or nitrogen.
myCBSEguide
Trusted by 1 Crore+ Students
Test Generator
Create papers online. It's FREE.
CUET Mock Tests
75,000+ questions to practice only on myCBSEguide app
Rock Star 7 years, 6 months ago
1Thank You