CBSE > Class 09 > Science | CBSE Board | Homework Help | myCBSEguide

No products in the cart.

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

Ask Question

Difference between suspension colloid and true solution

Posted by Mohammad Ehtesham 5 years, 8 months ago

CBSE > Class 09 > Science

2 answers

[email protected] Vaghela 5 years, 8 months ago

Suspension solution Size of solute particles are visible with naked eyes. Translucent or opaque. Solute particle settle down. size of solute particle is more than 100nm. Colloidal solution Size of solute particles are not visible with naked eyes. Translucent. Colloidal particle do not settle down. Size of solute particles between 1nm to 100nm

Kapil Kumar 5 years, 8 months ago

Chal ma pagl h kya

ANSWER

What are the differences between monocots and dicots?

Posted by Vashu Sinha 5 years, 8 months ago

CBSE > Class 09 > Science

3 answers

Anuradha Kumari 5 years, 7 months ago

Monocot have one cotyledons but dicots have two cotyledons

Pratee S 5 years, 7 months ago

monocot have 1 seed and dicot have 2 seeds

Vashu Sinha 5 years, 8 months ago

Hey guys

ANSWER

What do you mean by universal law of gravitation ?

Posted by Sidhu Saab 5 years, 8 months ago

CBSE > Class 09 > Science

2 answers

Samruddhi Br 5 years, 7 months ago

Every object in the universe attracts every other object which is directly proportional to the masses of the objects and inversely proportional to the square of the distance between them.

Vijay Ragavender Babu 5 years, 8 months ago

The force which is constant in everywhere in a object is called universal law of gravitation

ANSWER

What is relation between linear momentum and kinetics energy

Posted by Nutan Jha 5 years, 8 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

What is the atomic number of uranium

Posted by Aniket Nanu 5 years, 8 months ago

CBSE > Class 09 > Science

4 answers

Gyayak Jain 5 years, 7 months ago

Itna bhi nhi aata

Gyayak Jain 5 years, 7 months ago

Ninty + two

Rohit Raj 5 years, 8 months ago

92

Mohak Paul 5 years, 8 months ago

I don't know

ANSWER

How many bones in human body

Posted by Rupalikumari Rupalikumari 5 years, 8 months ago

CBSE > Class 09 > Science

9 answers

Kumar Ashish 5 years, 7 months ago

206 are in human body

Anuradha Kumari 5 years, 7 months ago

206

Rohan Rauniyar 5 years, 7 months ago

206

Kunal Thakur 5 years, 8 months ago

207

Pranshu Jaiswak Yuvjjgggfhfggh 5 years, 8 months ago

206

Oasis Bhutia 5 years, 8 months ago

206

Dhairya Vaidya 5 years, 8 months ago

206 bones

Aniket Nanu 5 years, 8 months ago

365

Rupalikumari Rupalikumari 5 years, 8 months ago

How many bones in human body

ANSWER

Which are the people more prone to food insecurity

Posted by Amrita Meena 5 years, 8 months ago

CBSE > Class 09 > Science

1 answers

Mohak Paul 5 years, 8 months ago

Poor people

ANSWER

Which are the people more prone to food industry?

Posted by Amrita Meena 5 years, 8 months ago

CBSE > Class 09 > Science

1 answers

Mohak Paul 5 years, 8 months ago

People's in rural arease

ANSWER

Difference table of hyotonic and isotonic

Posted by Dhruv Mathur 5 years, 8 months ago

CBSE > Class 09 > Science

1 answers

Meghna Thapar 5 years, 7 months ago

Hypotonic Solution	Isotonic Solution
A hypotonic solution will have a lower concentration of solutes than the cell. When eukaryotic cells are placed in hypotonic solutions, the water molecules will enter into the cell and the cell will swell up.	In isotonic solution the osmotic pressure outside the cells is the same as the osmotic pressure inside the cells. If the eukaryotic cell is placed in isotonic solution, the amount of water molecule will remain the same; it will neither move out or will go inside. The cell will remain same sized.

ANSWER

Who is The first to see an atom??

Posted by Meet Saab 5 years, 8 months ago

CBSE > Class 09 > Science

9 answers

Meet Saab 5 years, 7 months ago

Its John dalton ?? i would like to thank all. Thanks to all?

Meet Saab 5 years, 7 months ago

According to me jj Thomson or not ??

Gayathri Ramesh 5 years, 7 months ago

John dalton

Ashutosh Kumar Tiwari 5 years, 7 months ago

no one as an atom is too small

Rohan Bamniya 5 years, 7 months ago

Democritus

Rohan Bamniya 5 years, 7 months ago

John dalton

Sachchidanand Vishwakarma 5 years, 8 months ago

No one is able to see the atom because it is too small

Shashank Sah 5 years, 8 months ago

Rutherford

Chitesh Chand 5 years, 8 months ago

Rather ford

ANSWER

What is carnal ray

Posted by Sonia Singh 5 years, 1 month ago

CBSE > Class 09 > Science

3 answers

Sachchidanand Vishwakarma 5 years, 8 months ago

Canal rays are also called anode rays these are positively charged which generated at cathode and move towards anode

Shashank Sah 5 years, 8 months ago

Canal rays are streams of positively charged particle which move towards the negative electrode in a discharge tube when high voltage electricity is passed through a gas at very low pressure taken in the discharge tube

Meet Saab 5 years, 8 months ago

Its Canal rays that are streams of positively + charged which move towards negative - electrode in a discharge do when it when hi what is electricity is passed through it in low temperature that is Canada's got it .......... Thanks??

ANSWER

शोरे

Posted by Shivam Kumar 5 years, 8 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

Intermolecular force of attraction is maximum in

Posted by Rohit Shukla 5 years, 8 months ago

CBSE > Class 09 > Science

4 answers

Ashutosh Kumar Tiwari 5 years, 7 months ago

solids

Urvashi Singhal 5 years, 8 months ago

Solids

Prathamesh Bansod 5 years, 8 months ago

Solid

Himanshu Jha 5 years, 8 months ago

Solid

ANSWER

A car travel at 54 km for 20s ,36km for next 30s and finally 18 km for next 10s find the average speed

Posted by Sharma Manisha 5 years, 8 months ago

CBSE > Class 09 > Science

0 answers

ANSWER

1 kwt = 3.6 × 10^6 joule

Posted by Dev Raj Aditya 5 years, 8 months ago

CBSE > Class 09 > Science

1 answers

Aditya Kumar 5 years, 8 months ago

1kwh=3.6×10^6

ANSWER

What is the number of Valence electrons in sodium ion (Na+)????

Posted by Anshak . 5 years, 8 months ago

CBSE > Class 09 > Science

7 answers

Sachchidanand Vishwakarma 5 years, 8 months ago

It is valence electron is 8 present in the sodium

Shashank Sah 5 years, 8 months ago

1

Yogita Ingle 5 years, 8 months ago

8 is the number of valence electrons in sodium ion, Na⁺ has the electronic configuration of 2, 8.

Dolly Tanna 5 years, 8 months ago

8

Ruchi Bansal 5 years, 8 months ago

1

Aman Singh 5 years, 8 months ago

8

Aditya Kumar 5 years, 8 months ago

1

ANSWER

What is the difference between mammals and wall lizards

Posted by Aarin Singla 5 years, 8 months ago

CBSE > Class 09 > Science

1 answers

Sachchidanand Vishwakarma 5 years, 8 months ago

Mammals are viviparous they have mammary glands and sweat glands Wall lizard are oviparous did you not have mammary glands

ANSWER

Features of voluntry muscle

Posted by Nikita Roster 5 years, 8 months ago

CBSE > Class 09 > Science

2 answers

Sachchidanand Vishwakarma 5 years, 8 months ago

Voluntary muscles are those muscle which can move to our will

Yogita Ingle 5 years, 8 months ago

Voluntary muscles or striated muscles are those which work according to the one’s desire or are under control. Volunatey muscles are Long, cylindrical and unbranched. . It is thick Sarcolemma .

ANSWER

Write the features of voluntery muscles

Posted by Hsomshekar Somshekar 5 years, 8 months ago

CBSE > Class 09 > Science

1 answers

Meghna Thapar 5 years, 7 months ago

These are called skeletal muscles as they are found attached to the bones and help in the body movements. The cells are cylindrical, unbranched, striated and multi nucleated.

ANSWER

Why dust particles are called pollutants

Posted by Anjani Shekhawat 5 years, 8 months ago

CBSE > Class 09 > Science

1 answers

Sachchidanand Vishwakarma 5 years, 8 months ago

Because these are undesirable substance present in in any abiotic natural resource

ANSWER

Write the full form of DBD

Posted by Naresh Garg 5 years, 8 months ago

CBSE > Class 09 > Science

2 answers

Dolly Tanna 5 years, 8 months ago

Degenerative Bone Disease

Mansi Class12 5 years, 8 months ago

Disruptive Behavior Disorder

ANSWER

Characteristics of all the type of kingdom animalia and Plante

Posted by Manav Dhameliya 5 years, 8 months ago

CBSE > Class 09 > Science

1 answers

Yogita Ingle 5 years, 8 months ago

Characteristics of Kindom Plantae

The plant kingdom has the following characteristic features:

They are non-motile.
They usually reproduce sexually.
They follow the autotrophic mode of nutrition.
These are multicellular eukaryotes with cell wall and vacuoles.
These contain photosynthetic pigments called chlorophyll in the plastids.
They ave different organelles for anchorage, reproduction, support and photosynthesis.

ANSWER

What are isobars and isotopes.Give one example each

Posted by Pooja Gulia 5 years, 8 months ago

CBSE > Class 09 > Science

2 answers

Sachchidanand Vishwakarma 5 years, 8 months ago

Isotopes are those atoms of the same element having same atomic number but different atomic mass example hydrogen and carbon isobar are those atoms of different element which have different atomic number but same atomic mass Example argan and Calcium that's all

Yogita Ingle 5 years, 8 months ago

Isotopes

Atoms of the same element differing in the number of neutrons in their nuclei are known as isotopes. Thus, isotopes of an element have the same atomic number but different atomic mass numbers.
Isotopes are identified by their mass numbers.
For example, the isotopes of carbon are referred to as carbon-12, carbon-13 and carbon-14.

<div>

Isobars

</div>

The atoms of different elements having different atomic numbers but the same mass number are known as isobars.

Examples of Isobars are two Isotopes and Isobars is iron and nickel. Both have the same mass number which is 58 whereas the atomic number of iron is 26, and the atomic number of nickel is 28.

ANSWER

Comnicable and noncomnicable Mai different

Posted by Chandan Kumar Chandan Kumar 5 years, 8 months ago

CBSE > Class 09 > Science

3 answers

Mansi Class12 5 years, 8 months ago

Communicable diseases are the diseases which passes from one individual to another individual. They are generally caused by some bacteria, viruses or any other pathogens. For example, malaria, AIDS etc. Non-communicable diseases are the diseases which does not spread from one person to another person.

Manav Dhameliya 5 years, 8 months ago

H

Chandan Kumar Chandan Kumar 5 years, 8 months ago

Bbhh

ANSWER

Calculate the no. Of electron,proton, & neutron in an atom of an element with atomic no. 17 and mass number 35. Write electronic configuration and draw the structure of the atom

Posted by Jagmohan Brahama 5 years, 8 months ago

CBSE > Class 09 > Science

2 answers

Drishti Jain 5 years, 8 months ago

Electron - 17, Proton - 17,Neutron - 18, electronic configuration is 2,8,7

Mansi Class12 5 years, 8 months ago

Electronic configuration is 2,8,7

ANSWER

Factors responsible for the soil formation

Posted by Nandkishore Sharma 5 years, 8 months ago

CBSE > Class 09 > Science

1 answers

Yogita Ingle 5 years, 8 months ago

1. Parent Material: It is deposited by streams or derived from in-situ weathering. In this stage, soil inherits many properties like the mineral composition, the colour, the particle size and the chemical elements. For example- Black soil derived its colour from lava rock
2. Climate: It is one of the important factors in the formation of soil because it affects the rate of weathering of the parent rock.
3. Role of precipitation: The variability in the precipitation modified the composition of the soil. For Example- Areas with little rainfall with high rate of evaporation led to the accumulation of salts in the soil. The soils underlying tropical rain forests tend to be nutrient-poor because of intensive leaching due to heavy rains.
4. Role of temperature: It is also play important role because fluctuations in temperature causes shrinking and swelling, frost action and general weathering in soils.

ANSWER

What is the full from of AIDS

Posted by Ram Daware 5 years, 8 months ago

CBSE > Class 09 > Science

3 answers

Parica Ferendece 5 years, 8 months ago

Acquired immune deficiency syndrome

Mansi Class12 5 years, 8 months ago

Acquired Immuno Deficiency Syndrome

Yogita Ingle 5 years, 8 months ago

Acquired immunodeficiency syndrome or Acquired immune deficiency syndrome (AIDS) is a disease caused by a virus called HIV.

ANSWER

Write the full form of WHO

Posted by Abhishek Parjapat 5 years, 8 months ago

CBSE > Class 09 > Science

4 answers

Kumar Ashish 5 years, 7 months ago

World Health organization

Ishika Darpe 5 years, 8 months ago

World health organisation

Jagmohan Brahama 5 years, 8 months ago

World health organisation

Priya Parjapati 5 years, 8 months ago

World health organisation

ANSWER

Why sound travel in wave

Posted by Sumit Gupta 5 years, 8 months ago

CBSE > Class 09 > Science

1 answers

Suresh Chauhan 5 years, 8 months ago

Because waves is medium of sound

ANSWER

Prove that the value of g = 9.8

Posted by Amrita Kumari 5 years, 8 months ago

CBSE > Class 09 > Science

1 answers

Aditya Kumar 5 years, 8 months ago

F=G×M×m÷r^2 Also, F=mg Therefore, mg=G×M×m÷r^2 g=G×M÷r^2, where G is the universal gravitational constant, M is mass of the earth and r is the radius of the earth? g=6.67×10^-11×6×10^24÷(6.4×10^6)^2 g=9.8m/s^2

ANSWER

Page 309 of 1369

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