CBSE > Class 10 > Science | CBSE Board | Homework Help | myCBSEguide

No products in the cart.

Ask questions which are clear, concise and easy to understand.

Ask Question

Displacement reaction difine with example

Posted by Adarsh Gupta Gupta 4 years ago

CBSE > Class 10 > Science

5 answers

S.Josshika 11 D 4 years ago

Displacement reaction is a chemical reaction in which a more reactive element displaces a less reactive element from its compound. Both metals and non-metals take part in displacement reactions.

Aman Kumar Yadav 4 years ago

It is a type of chemical reaction in which less reactive metal is displace by more reactive metal is called displacement reaction. Example=Zn+FeSO4=ZnSO4+ Fe

Zainab Khan 4 years ago

It is a reactionIn which A mσrє rєαctívє mєtαl díѕplαcєѕ lєѕѕ rєαctívє mєtαl

Tanisha Agarwal 4 years ago

It is a reaction in which a more reactive metal displaces a less reactive metal from its salt solution Eg CuSO4+ Fe→FeSO4+Cu

Prateek Pandey 4 years ago

It is a type of reaction in which high reactive metal displaces less reactive metal Ex = copper sulphate +Iron --gives us Iron sulphate +Copper Here in copper sulphate solution when Iron is added which is highly reactive than copper it displaces copper from its salt solution

ANSWER

What are h+ ions and how they will be obtained

Posted by Vineet Bamagond 4 years ago

CBSE > Class 10 > Science

2 answers

Khushi Kulshrestha 4 years ago

H+ ions are defined that the solution is acid while the solution is dissolved in water

Prateek Pandey 4 years ago

H+ ions are present in acids . They are obtained when a hydrogen atom loses or gains an electron.

ANSWER

What is xylem and phloem

Posted by Dhirendra Kannoji 4 years ago

CBSE > Class 10 > Science

5 answers

S.Josshika 11 D 4 years ago

Xylem is the complex tissue of plants, responsible for transporting water and other nutrients to the plants. Phloem is living tissue, responsible for transporting food and other organic materials. ... Phloem transports food materials that are prepared by the green parts of the plants to other parts of the plant.

Mahesh Kumar Rai 4 years ago

Plants have tissues to transport water, nutrients and minerals. Xylem transports water and mineral salts from the roots up to other parts of the plant, while phloem transports sucrose and amino acids between the leaves and other parts of the plant.

Ankit Barman 4 years ago

xylem I don't know n pholem I don't wanna tell

Prateek Pandey 4 years ago

Xylem and phloem both are present in plant cells . They are also called conducting tubes . Xylems work is to transport water and minerals to the leaves . Phloems work is to transport food to the remaining part of the plant

Revananath Pandhare 4 years ago

Hhi

ANSWER

Fe3O4 is called as " Iron(II)(III) oxide. What is the meaning of this II & III

Posted by Anil Mahendrakar 4 years ago

CBSE > Class 10 > Science

3 answers

Zainab Khan 4 years ago

ít íѕ вαѕєd upσn thє nσ σf vαlєncч thєч hαvє

Tanisha Agarwal 4 years ago

Valency

Prateek Pandey 4 years ago

It is the name given by IUPAC (International Union of Pure and Applied Chemistry ). It is so called because it is formed by the reaction between ferrous oxide and ferric oxide i.e.,Iron(II) and (III) oxide [ feo+fe2o3]

ANSWER

What is the function of hcl in our stomach? (Note) mujhe answer malum hai >its make the food acidic so that papsin can digest portine proper ly and HCl kill any bacteria present in food

Posted by Mr Amit Rajbhar 4 years ago

CBSE > Class 10 > Science

2 answers

Prateek Pandey 4 years ago

And also it acts as a preservative of food in our stomach

Mayank Mittal 4 years ago

Pepsin in the stomach is in inactive form HCL actives it and it kills germs which come along with food

ANSWER

Who many elements are there in present

Posted by Vineet Gangwar 4 years ago

CBSE > Class 10 > Science

4 answers

Tanisha Agarwal 4 years ago

118

Prateek Pandey 4 years ago

118

Khushi Kulshrestha 4 years ago

118

Vivek Oberoy 4 years ago

118

ANSWER

Puberty in girls

Posted by Vansh Sarraf 4 years ago

CBSE > Class 10 > Science

2 answers

Shubham Gupta 4 years ago

Pelne ke yogya ho gayi ladkiyaan Jawani mein chodna Pela pelii Jawani ka josh

Anil Mahendrakar 4 years ago

At age of 11or 12

ANSWER

What is reproduction with example ?

Posted by Daksh Dhiman 4 years ago

CBSE > Class 10 > Science

0 answers

ANSWER

Define environment

Posted by Gaming Rockstar 4 years ago

CBSE > Class 10 > Science

1 answers

Vaibhavi Rastogi 4 years ago

The condition in which you are live, work etc.. Or you can define it like. The natural world, for example the land, air and water, in which people, animals and plants live.

ANSWER

How to define refraction

Posted by Aadarsh Shukla 4 years ago

CBSE > Class 10 > Science

3 answers

Skzisan Uddin 3 years, 11 months ago

Bending of light is known as refration

S.Josshika 11 D 4 years ago

Refraction of light is the phenomenon of change in the path of light in going from one medium to another. • In going from a rarer to a denser medium, the ray of light bends towards normal and in going from a denser to a rarer medium, the ray of light bends away from normal.

Rekha Sharma 4 years ago

The phenomenon of bending of path of light rays on entering from one medium to another, is called Refraction.

ANSWER

What are the respiratory organs in cockroach and fish

Posted by Sahiya Sahiya 4 years ago

CBSE > Class 10 > Science

1 answers

Prachi Garg 4 years ago

BREATHING IN FISH: Fish have a pair of gills. The breathe air, dissolved in water, through gills. BREATHING IN COCKROACH: Cockroach and other insects breathe through spiracles and tracheae.

ANSWER

Give one industrial application of. Reduction

Posted by Nevil Balar 4 years ago

CBSE > Class 10 > Science

1 answers

Mansi Sharma 4 years ago

It is used for obtaining metal ores.

ANSWER

When will live and interactive class will start by my cbse guide learning app tell me?

Posted by Mohit Chauhan 4 years ago

CBSE > Class 10 > Science

3 answers

Prateek Pandey 4 years ago

Never ever

Pavi Pandey 4 years ago

Yeah-....it's not a coaching thingy...it's like a guide so...naah...

D J 4 years ago

I don't think CBSE guide would start live interactive classes

ANSWER

What is light year ?

Posted by Sanket ... 4 years ago

CBSE > Class 10 > Science

3 answers

Samiksha Singh 4 years ago

the distance that light travels in one year,

Anand Jaiswal 4 years ago

Light years means distance travelled by a object by speed of light in 1 year.

Mansi Sharma 4 years ago

It is the distance that light can travel in one year.

ANSWER

Define 1dioptre of power of a lens?

Posted by Prince Rajput 4 years ago

CBSE > Class 10 > Science

3 answers

Shubham Gupta 4 years ago

Whose focal length is 1m

Samiksha Singh 4 years ago

Answer: 1 dioptre of power of a lens is described as the unit of measurement of the optical power of a lens or curved mirror equivalent to the reciprocal of focal length (f). Measurement of the focal length in a meter. The SI unit of power of lens is dioptre whose focal length is one meter, which is denoted by the letter D. 1 dioptre (D) = P = 1/f Where f = focal le

Mansi Sharma 4 years ago

1 dioptre is power of lens whose focal length (f) is 1m

ANSWER

given 4 resistors, how many different combinations can be made

Posted by Lakshmi Ranganath.K.M. Lucky 4 years ago

CBSE > Class 10 > Science

1 answers

Mansi Sharma 4 years ago

Nine resistors can be made

ANSWER

Ph value of a solution is zero.So, What is nature of solution???

Posted by Mansi Sharma 4 years ago

CBSE > Class 10 > Science

5 answers

Dhana Lakshmi S 3 years, 11 months ago

Highly acidic

Prateek Pandey 4 years ago

Very very very very strong acid

Sumedh Rajurkar 4 years ago

Acidic and the acid will be strong acid

Prabhjot Singh 4 years ago

Strong acid

Jivanshi Bansal 4 years ago

Acidic nature..

ANSWER

Chapter 3 questions answers

Posted by Dheeraj Yadav 4 years ago

CBSE > Class 10 > Science

1 answers

Vishal Prajapat 4 years ago

You get this from Google

ANSWER

Property of metal

Posted by Jigar Solanki 4 years ago

CBSE > Class 10 > Science

5 answers

Rekha Sharma 4 years ago

A substance which is lustrous, sonorous, malleable, ductile, having high melting and boiling points and can conduct heat and electricity , is called a metal.

Praful Baghel 4 years ago

Physical and chemical properties

Ajay Yadav 4 years ago

Physical and chemical properties

Vishakha Vishakha 4 years ago

Property

Dimpi Gurjar 4 years ago

Physical or chemical properties

ANSWER

Xylem in plants are responsible for

Posted by Abhay Rai 4 years ago

CBSE > Class 10 > Science

5 answers

Praful Baghel 4 years ago

For transport of water in autotrophic

Ajay Yadav 4 years ago

For transport of water in autotrophic

Jayendra Panghal 4 years ago

For transportation of water in plants

Dimpi Gurjar 4 years ago

It is responsible for water transportation in plant parts from roots to other plant parts (You can learn like that from down to up ) Down to up means in down roots to up means to other bplant parts

Divyanshi Singh 4 years ago

It is responsible for the transport of water from roots to other parts of plant

ANSWER

Nn

Posted by Itishree Nayak 4 years ago

CBSE > Class 10 > Science

2 answers

Jivanshi Bansal 4 years ago

Pp

ᵐⁱˢˢ Lucid Dream 4 years ago

Oo

ANSWER

When will live and interactive class will start ?

Posted by Mohit Chauhan 4 years ago

CBSE > Class 10 > Science

0 answers

ANSWER

An aqueous solution with pH zero is

Posted by Kushal Raj 4 years ago

CBSE > Class 10 > Science

3 answers

Dhana Lakshmi S 3 years, 11 months ago

Highy acidic

Jivanshi Bansal 4 years ago

Acidic..

Jivanshi Bansal 4 years ago

Acidic..

ANSWER

What is meant by delta (in physics)

Posted by Harshit Yadav 4 years ago

CBSE > Class 10 > Science

3 answers

Sushil Vishwakarma 3 years, 11 months ago

Its Shows Small unit

Satya Swaroop Nune 3 years, 11 months ago

Change in a physical quantity

Mansi Sharma 4 years ago

Change in velocity

ANSWER

Velocity of light in air is

Posted by Arockia Shathana Masilamani 4 years ago

CBSE > Class 10 > Science

4 answers

Anand Jaiswal 4 years ago

3x10⁸ m/s

Praful Baghel 4 years ago

3x10⁸ m/s

Amit Chaudhary 4 years ago

3×10⁸ m/s

Sakshi Bajaj 4 years ago

3x10⁸ m/s

ANSWER

Why ionic compound have high melting point and high boiling points?

Posted by Dibyasmita Barik 4 years ago

CBSE > Class 10 > Science

2 answers

Rahul Choudhary 4 years ago

Because ionic compounds are held together by electrostatic forces between the oppositely charged ions.

Om Sharma 4 years ago

It is because of the strong forces of attraction between the ions of the compound

ANSWER

How are fats digested in our bodies where does this process take place

Posted by Varun Kumar 4 years ago

CBSE > Class 10 > Science

4 answers

Sumedh Rajurkar 4 years ago

Fats are digested in small intestine with the help of Bile and lipase

Om Sharma 4 years ago

Fats are digested in our small intestine. The big globules of fats are emulsified by bile salts and digested by lipase ,secreted by pancreas, into lipids and glycerol

Mansi Sharma 4 years ago

In small intestine with the secretions of liver and pancreas

Jay Karosiya 4 years ago

When we became lazy

ANSWER

From where can I get science lab Manual class X online..helppp

Posted by Vaid G 4 years ago

CBSE > Class 10 > Science

2 answers

Karandeep Kaur 4 years ago

From amazon also i have ordered laboratory manual class 10th

Rahul Choudhary 4 years ago

From flipkart . search: laboratory manual science(class 10th). Ok .

ANSWER

to determine the focal length of convex mirror practical class 10

Posted by Abhi Gamer 4 years ago

CBSE > Class 10 > Science

1 answers

Rahul Choudhary 4 years ago

Place the holder with the screen on the bench. The position of the screen should be such that the sharp image of the distant object is obtained on it. The difference between the position of the lens and the screen is equal to the focal length of the given convex lens.

ANSWER

Name two infection which can be sexually transmitted in human beings

Posted by Anmol Boparai 4 years ago

CBSE > Class 10 > Science

3 answers

User ....???.... 4 years ago

AIDS and Syphillis

Pranay Shrivastava 4 years ago

Aids and cancer

Yash Lakra 4 years ago

Aids and cancer

ANSWER

Page 112 of 2763

myCBSEguide App

myCBSEguide

Trusted by 1 Crore+ Students

Test Generator

Test Generator

Create papers online. It's FREE.

CUET Mock Tests

CUET Mock Tests

75,000+ questions to practice only on myCBSEguide app

Google Play

Download myCBSEguide App