Incorrect URL accessed!!!!

ANSWER

What is the role of earth wire in home circuit

Posted by Lucifer ? Morningstar? 5 years, 6 months ago

CBSE > Class 10 > Science

1 answers

Pankaj Malik 5 years, 6 months ago

Earthing is used to protect you from an electric shock. It does this by providing a path (a protective conductor) for a fault current to flow to earth. It also causes the protective device (either a circuit-breaker or fuse) to switch off the electric current to the circuit that has the fault.

ANSWER

Why HCL gas turns wet blue litmus red?

Posted by Dharmendra Singh 5 years, 6 months ago

CBSE > Class 10 > Science

4 answers

Manbir Kaur 5 years, 6 months ago

HCl is an acidic gas . As we know that acids turns blue litmus red . Hence , HCl will turn wet blue litmus to red

Suryansh Singh 5 years, 6 months ago

No it doesn't turn as it is gas but when it is dissolved in water it changes

Shivani Meher 5 years, 6 months ago

Because it is a acid ..

Sarthak Sharma 5 years, 6 months ago

Hcl shows acidic characterstics in aqueous sloution because so H+ ions release in solution so that's why blur lithmus paper turn into red

ANSWER

Note all chapter

Posted by Imtiyaz Star 5 years, 6 months ago

CBSE > Class 10 > Science

1 answers

Sehjal Singh 5 years, 6 months ago

What do you mean?

ANSWER

What are neutralization reactions?????

Posted by Mahi....... . 5 years, 6 months ago

CBSE > Class 10 > Science

5 answers

Mahi....... . 5 years, 6 months ago

?????

Mahi....... . 5 years, 6 months ago

Sosankar keep

Mahi....... . 5 years, 6 months ago

If u don't know so keep quiet ???

Ishika ? 5 years, 6 months ago

It is a chemical reaction in which acid and a base reacts quantitively with each other.☺️

3Thank You

Sosankar Boruah 5 years, 6 months ago

What is neutrization reaction?????????????????????@sosankar

ANSWER

Difference between atoms and molecules.

Posted by Lucifer?? Morningstar?? 5 years, 6 months ago

CBSE > Class 10 > Science

2 answers

Ishika ? 5 years, 6 months ago

1. An atoms is the smallest unit of an element. A molecule is two or more atoms chemically bounded together. 2. A molecule can be broken apart by chemical process, an atom cannot.

Mahi....... . 5 years, 6 months ago

Atom-the tiny particle of chemical element, which may or may not exist independently is called atom Molecules-molecules refer to the set of the atom held together by the bond, indicating the smallest unit of a compound.....two or more identical or different atoms bonded chemically

ANSWER

Difference between nervous and endocrine system

Posted by Aditya Khohwal 5 years, 6 months ago

CBSE > Class 10 > Science

5 answers

Aditya Khohwal 5 years, 5 months ago

In which class do u study

Aditya Khohwal 5 years, 5 months ago

Oka

Aditya Khohwal 5 years, 5 months ago

Aditya Khohwal 5 years, 5 months ago

Mine freind u have cheated from this aapp

Manvi Rana 5 years, 6 months ago

Nervous system uses electrical impulses to send the message through neuron while endocrine glands uses hormones to send message to the target cells through the bloodstream

ANSWER

Relationship of the factors on which resistance of the conductor depends

Posted by Daksh Goyal 5 years, 6 months ago

CBSE > Class 10 > Science

1 answers

Suryansh Singh 5 years, 6 months ago

R directly proportional length R inversly proportional Area R directly proportional temperature R directly proportional resistivity

ANSWER

What is principal focus of concave mirror

Posted by Ashwin Kumar 5 years, 6 months ago

CBSE > Class 10 > Science

1 answers

Pankaj Malik 5 years, 6 months ago

Define the Principal Focus of a Concave Mirror? Light rays that are parallel to the principal axis of a concave mirror converge at a specific point on its principal axis after reflecting from the mirror. This point is known as the principal focus of the concave mirror.

ANSWER

What do you mean by council meeting

Posted by Bipin Yadav 5 years, 6 months ago

CBSE > Class 10 > Science

1 answers

Meghna Thapar 5 years, 6 months ago

Council meetings refers to all council decisions are made at council meetings or through them. They are either made at the meeting or under delegated authority to others. Council decisions are made by a majority of the councillors present at the meeting voting in favour, providing a quorum is present. Full Council is a meeting of all Haringey's 57 Councillors. It is chaired by The Mayor who also maintains a ceremonial role. It is run according to formal rules of debate known as standing orders as laid out in the Council's Constitution. A council is meeting for discussion or advice, but to counsel is a verb meaning to give advice. Council comes from the Latin word concilium for "group of people, meeting," which is what it basically means today. There are student councils, honor councils, or city councils, to name a few.

ANSWER

A pieces of wire of resistance Ris cut into five equal parts these parts are then connected in parallel if the equivalent resistance of this combination is R' then the ratio R/R' is 1/5

Posted by Abhijith Su 5 years, 6 months ago

CBSE > Class 10 > Science

2 answers

Yogita Ingle 5 years, 6 months ago

Wire is cut into 5 equal parts. Since all dimensions are same for pieces, Resistance of each wire is equal and has a value = R/5.

Resistance is proportional to length of wire and inversely proportional to area of cross-section. IF length is 1/5th, then Resistance is also 1/5 th of original value.

When these five are connected in parallel combination, then net resistance becomes 1/5th again. So R1 = R/5 * 1/5 = R/25

Ratio = R1/R = 1/25

Abhijith Su 5 years, 6 months ago

1/5 is the answer

ANSWER

What is the colour of phenolphthalein in soap solution ❔❔?

Posted by Ishika ? 5 years, 6 months ago

CBSE > Class 10 > Science

5 answers

Ash Greninja 5 years, 6 months ago

Pink

Ishika ? 5 years, 6 months ago

Thanks??

Bipin Yadav 5 years, 6 months ago

Pink

Twinshi ** 5 years, 6 months ago

The colour of phenolphthalein in soap solution is pink.Beacause soap is a base and when synthetic indicator i.e. phenolphthalein is used it remain same in acid but it change in base i.e.pink Hope it helps you!

Vedant Kodape 5 years, 6 months ago

RED

ANSWER

Whatwillhappentofungiifthereareunfavourableconditions? Explain.

Posted by Sonia Dhammi 5 years, 6 months ago

CBSE > Class 10 > Science

2 answers

Mansi Mishra 5 years, 6 months ago

Question mai gap to do

Yogita Ingle 5 years, 6 months ago

In the case of lower organisms like the bacteria, fungi and lower plants, the metabolic rates are changed. When there are unfavorable conditions, the metabolic rate is slowed down. This helps in conserving energy to survive. There is the formation of spores in lower organisms. These are tough spores which have a hard covering. These spores can survive in the adverse conditions and germinate on the return of favorable climate.

ANSWER

What is static friction ? (Please tell me in simple word)

Posted by Taw Garam 5 years, 6 months ago

CBSE > Class 10 > Science

1 answers

Yogita Ingle 5 years, 6 months ago

Static friction is a force that keeps an object at rest. Static friction definition can be written as: The friction experienced when individuals try to move a stationary object on a surface, without actually triggering any relative motion between the body and the surface which it is on.

ANSWER

What is other name for Sensory neuron

Posted by Raman Upadhyay 5 years, 6 months ago

CBSE > Class 10 > Science

5 answers

Divyansh Joshi 5 years, 6 months ago

Afferent neurons

Ash Greninja 5 years, 6 months ago

Afferent neurons

Ishika ? 5 years, 6 months ago

Other name for Sensory Neuron is "Afferent Neurons"☺️☺️

Shreyash Awasthi 5 years, 6 months ago

Afferent neurons

Lucifer?? Morningstar?? 5 years, 6 months ago

Afferent neurons

ANSWER

Why nitrogen is a inert gas while its e configuration is 2,5 and the noble gases have configuration of 2,8

Posted by Yashika Jain 5 years, 6 months ago

CBSE > Class 10 > Science

1 answers

Meghna Thapar 5 years, 6 months ago

The noble gas shorthand is used to summarize the electron configuration of an element while providing the most relevant information about the valence electrons of that element. The noble gas is substituted to represent all of the electrons that aren't valence electrons. An inert gas is one that does not undergo chemical reactions. Noble gases refers to the right most group of the periodic table composed of helium, neon, argon, krypton, xenon, and radon. As you might have seen as an example in class, some noble gases can form chemical compounds, such as XeF4.

ANSWER

Write the balanced chemical equation for the following reactions :- 1- Calcium hydroxide + Carbon dioxide = calcium carbonate+ water 2- Zinc+ Silver nitrate = Zinc nitrate + Silvee 3 - Ammunium+ Copper Chloride= Ammunium chloride+ Copper 4- Barium chloride+ Pottasium Sulphate= Barium sulphate+ Pottasium Chloride

Posted by Nirmal Kumar 5 years, 6 months ago

CBSE > Class 10 > Science

0 answers

ANSWER

When iron is heated with Sulphur, iron sulphide is formed name the reaction

Posted by Afsaaar Khan 5 years, 6 months ago

CBSE > Class 10 > Science

4 answers

B.Aishwarya 203 Kalyannagar 5 years, 5 months ago

Combination reaction.

Shreyash Awasthi 5 years, 6 months ago

Combination reaction

Yogita Ingle 5 years, 6 months ago

A combination reaction is one in which two or more substances react together to form a third substance which is the addition product of the two.
Here there is an exchange of electrons between the two compounds. When solid iron ‘metal is heated’ with powder sulphur which is a non-metal iron sulphide is formed. Iron exhibits a variable valency of 2 and 3.
Here it loses two electrons, on the other ‘hand sulphur’ gains these two electrons. And hence FeS is formed.

Fe + S ⟶ FeS

Kumkum Devi 5 years, 6 months ago

Combination reaction

ANSWER

Pariodic table

Posted by Mohd Qasim 5 years, 6 months ago

CBSE > Class 10 > Science

2 answers

Shreyash Awasthi 5 years, 6 months ago

Perodic table is a table of elements that is discovered since today,there are 118 elements in periodic table

Aiman Salim 5 years, 6 months ago

U want defination

3Thank You

ANSWER

Solve the 10 year board exam question of ch 1 and 2

Posted by Kishan Tiwari 5 years, 6 months ago

CBSE > Class 10 > Science

0 answers

ANSWER

Name the metal used to make needle of compass.??

Posted by Lucifer ? Morningstar? 5 years, 6 months ago

CBSE > Class 10 > Science

2 answers

Manbir Kaur 5 years, 6 months ago

Iron second third oxide ( Fe3O4)

Shreya S❤ 5 years, 6 months ago

fe3o4 ... iron second third oxide

ANSWER

Why should we clean Mg ribbon be4 buring?

Posted by Suryansh Singh 5 years, 6 months ago

CBSE > Class 10 > Science

5 answers

Anchit ? 5 years, 6 months ago

It should b cleaned by sandpaper so as to remove the protective layer of MgO such that to combine readily with oxygen in air. .

Abhishek Sharma 5 years, 6 months ago

To remove the layer of magnesium oxide coated on that ribbon. It should be cleaned by rubbing it with sand paper

Lucifer ? Morningstar? 5 years, 6 months ago

Suryansh Singh 5 years, 6 months ago

Isn't it Magnesium Carbonate?

Lucifer ? Morningstar? 5 years, 6 months ago

To remove the layer of magnesium oxide from mg ribbon.

ANSWER

Bee Stings Can be treated by

Posted by Aiman Salim 5 years, 6 months ago

CBSE > Class 10 > Science

4 answers

Miss__ Thakur 5 years, 6 months ago

Any base...

Disha Macwan 5 years, 6 months ago

Caustic soda

Abhinandan Singh Shekhawat 5 years, 6 months ago

KOH ( potassium hydroxide)

Lucifer ? Morningstar? 5 years, 6 months ago

Any base for example potassium hydroxide

ANSWER

When Zn granules are added to dilute H2SO4 Which of the following reactions take place?

Posted by Manish Kumar 5 years, 6 months ago

CBSE > Class 10 > Science

3 answers

B.Aishwarya 203 Kalyannagar 5 years, 5 months ago

Evolution of hydrogen gas

Yogita Ingle 5 years, 6 months ago

When dilute sulphuric acis is added to zinc granules, then zinc should become white, as it is becoming zinc sulfate, which is also known as "white vitriol."
The reason proceeds with the liberation of hydrogen gas and a large amount of heat as below -
Zn (s) + H₂SO₄ (aq) → ZnSO₄(s) + H₂(g) (Exothermic reaction)

Lucifer ? Morningstar? 5 years, 6 months ago

Zn+H2SO4---------> ZnSo4+H2

ANSWER

How can balance the chemical equation

Posted by Nishant Patel 5 years, 6 months ago

CBSE > Class 10 > Science

2 answers

Santosh Yadav 5 years, 6 months ago

By ABCD method...search on YouTube..

Meghna Thapar 5 years, 6 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

The various ways in which a chemical equation can be made more informative are : (i) By indicating the physical states of the reactants and products. Example: Solid state is indicated by the symbol (s).

(ii) By indicating the heat changes taking place in the reaction. For Example: An exothermic reaction is indicated by writing “+Heat” or “+Heat energy” or “+Energy” on the products side of an equation.

(iii) By indicating the “conditions” under which the reaction takes place.

Example: Delta stands for heat which is written on the arrow sign in the equation.

ANSWER

What is a diffraction?

Posted by Ashutosh Yadav 5 years, 6 months ago

CBSE > Class 10 > Science

1 answers

Lucifer ? Morningstar? 5 years, 6 months ago

Diffraction is defined as the bending of waves around the corners of an obstacle or through an aperture into the region of geometrical shadow of the obstacle/aperture

ANSWER

Why are s x important

Posted by Srajan Swarnkar 5 years, 6 months ago

CBSE > Class 10 > Science

0 answers

ANSWER

Nutrition brifely notes

Posted by Kalpana Nayak 5 years, 6 months ago

CBSE > Class 10 > Science

1 answers

Srajan Swarnkar 5 years, 6 months ago

xxx

ANSWER

All flesh is grass justify the statement

Posted by Anubhaw Kumar 5 years, 6 months ago

CBSE > Class 10 > Science

1 answers

Meghna Thapar 5 years, 5 months ago

Every consumer whether it is an animal, fish or bird has a fix life span after the completion of which they die. Dead remains of these organisms are decomposed by the decomposes i.e converted into simple inorganic substances. These inorganic substances serve as raw material for photosynthesis of the plants . Hence flesh in any form finally becomes grass.

A carnivore derives its nutrition from a herbivore; while a herbivore derives it from grass or plants. So, a carnivore receives its entire food from the plants via herbivorous animal to build their body muscles and other tissues, hence we can say that all the flesh of not only carnivores but herbivores and omnivores is grass or other plants.