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  • 5 answers

Shubham Saxena ???? 5 years, 3 months ago

Thank you for answering.

Satyam Lodhi Rajput 5 years, 3 months ago

Lead , gold , silver , platenium, copper,

Guddy Kirola 5 years, 3 months ago

Silver gold lead and copper

Shubham Saxena ???? 5 years, 3 months ago

Ok thanks for answering my question. Welldone

Maahi ......♾ 5 years, 3 months ago

Lead and copper etc.
  • 4 answers

Shubham Saxena ???? 5 years, 3 months ago

Thank you for answering my question.

Tapish Sharma 5 years, 3 months ago

Gold and silver

Yogita Ingle 5 years, 3 months ago

Gold and silver are two metals which do not react with water at all, because gold and silver are least reactive. So, they are used in ornaments and to prepare coins, etc.

Satyam Lodhi Rajput 5 years, 3 months ago

Platenium ,gold
  • 5 answers

Malaika Sharma 5 years, 3 months ago

Firstly read the chapters thoroughly from the necert book then go for revision notes of this app.Write all the imp points in a notebook.U will definitely score good marks.

Guddy Kirola 5 years, 3 months ago

I need more suggestion friends please suggest

Shubham Saxena ???? 5 years, 3 months ago

Yes you can get good marks but if you are interested in study and you think that I will have to get good marks so then I think you will also get good marks but do practice for exam .Ok

Guddy Kirola 5 years, 3 months ago

U are confusing me please only tell yes or no can I bring good marks.....I like ur suggestion bro but .....please tell me yes or no

Shubham Saxena ???? 5 years, 3 months ago

If you do more practice by this app by using more videos of all subjects and learn the all syllabus which will be in your exam so you can get good marks in exam . You are saying that [ If I will study from this app so I can get 90+ ] ,, [ I think you will get good marks by doing your practice and you will have to be interested in study to do more than practice for your exam preparation ]. Thank you.
  • 5 answers

Vikash Yadav 5 years, 3 months ago

We can say that silver is less reactive than copper because it exist the bottom of the reactivity series and below the copper in the reactivity series

Malaika Sharma 5 years, 3 months ago

Copper can displace silver so silver is less reactive.

Muskan Muskan 5 years, 3 months ago

Biology chapter 1 all diagram

Shubham Saxena ???? 5 years, 3 months ago

Ok thanks.

Satyam Lodhi Rajput 5 years, 3 months ago

Because silver is not react with water
  • 5 answers

Kritika Pathak 5 years, 3 months ago

Litmus, turmeric, red cabbage

Satyam Lodhi Rajput 5 years, 3 months ago

Litmas paper , termeric

Guddy Kirola 5 years, 3 months ago

Welcome

Shubham Saxena ???? 5 years, 3 months ago

Thank you for answering my question.

Guddy Kirola 5 years, 3 months ago

Turmeric;litmus
  • 4 answers

Satyam Lodhi Rajput 5 years, 3 months ago

React with metal to mske the food acidic

Shubham Saxena ???? 5 years, 3 months ago

Thank you for answering . Welldone

Maahi ......♾ 5 years, 3 months ago

Strong acid for example,are best stored in PMP or HDPE container this is partly because these plastics are chemically inert and so won't react with the substance. For this reason it is not suitable to store certain chemicals in metal container as they are likely to corrode.

Guddy Kirola 5 years, 3 months ago

Bcoz acid react with metals For example If u will keep onion in aluminum foil so it will react and makes an unpleasant smell
  • 1 answers

Guddy Kirola 5 years, 3 months ago

It is based on ur school and syllabus is based on ur teacher from which date they will conduct exams ......but the date for board exams will be same for all uttarkhand schools
  • 3 answers

Guddy Kirola 5 years, 3 months ago

What
What type of good news are you talking about ??

Goli Hemanth Kumar 5 years, 3 months ago

Ok
  • 1 answers

Yogita Ingle 5 years, 3 months ago

This is because even during sleep, our body is carrying out several metabolic processes, which need energy. Several processes like respiration, heart beat, circulation, digestion etc. are all occurring even when we are sleeping, which consumes energy.

  • 0 answers
  • 4 answers

Yashsvee Kumar 5 years, 3 months ago

Good I have a good news

Yashsvee Kumar 5 years, 3 months ago

Great we happy

Superwiser Saurabh Singh 5 years, 3 months ago

What is your fb id

Yogita Ingle 5 years, 3 months ago

Series Parallel
The same amount of current flows through all the components The current flowing through each component combines to form the current flow through the source.
In an electrical circuit, components are arranged in a line In an electrical circuit, components are arranged parallel to each other
When resistors are put in a series circuit, the voltage across each resistor is different even though the current flow is the same through all of them. When resistors are put in a parallel circuit, the voltage across each of the resistors is the same. And even the polarities are the same
If one component breaks down, the whole circuit will burn out. Other components will function even if one component breaks down, each has its own independent circuit
If Vt is the total voltage then it is equal to V1+V2+V3 If Vt is the total voltage then it is equal to V1=V2=V3
  • 3 answers

Yogita Ingle 5 years, 3 months ago

Lens : A lens is a piece of a transparent, refracting medium bounded by two surfaces, of which one is atleast a curved surface. 
The commonly used lenses are the spherical lenses, which have either both surfaces spherical or one spherical and the other a plane one. 
Spherical lenses are of two main types:

1) Convex or converging lens: A lens which is thicker at the centre than at the edges is called a convex lens. It converges a parallel beam of light on refraction through it and has a real focus. 

2) Concave or diverging lens: The lens which is thinner at the centre than at the edges is called a concave or diverging lens. It diverges a beam of light on refraction through it or we can say a ray of light which is incident on the surface of the mirror, appears to converge after refraction. Hence, it has a virtual focus. 

Rekha Annappa 5 years, 3 months ago

English answer

Rekha Annappa 5 years, 3 months ago

ಕನ್ನಡ
  • 0 answers
  • 3 answers

Yashsvee Kumar 5 years, 3 months ago

Ok see

Yogita Ingle 5 years, 3 months ago

Urethra

It is a tube-like structure that connects the urinary bladder to the urinary meatus. In males, the urethra travels through the ***** and is mainly involved in two main functions:

  • This region is included in the urinary tract that takes urine from the bladder where semen is ejaculated.
  • The Prostate exists beneath the bladder and covers the urethra. The prostate grows larger with age. If the prostate grows too much, it can block the urine flow through the urethra and be responsible for some urinary symptoms.

Tiksha Gupta 5 years, 3 months ago

That's s c r o t u m.
  • 1 answers

Yogita Ingle 5 years, 3 months ago

The process of ovulation will release the egg from the ovary. This ovary then undergoes the process of fertilization with the sperm in one of the fallopian tube. The fertilized egg then moves towards the uterus where it gets implanted. After successful implantation, the embryo develops inside the uterus during the gestation period. After the foetus is fully developed, then it is delivered by the process of parturition from the uterus to the ****** to outside world.

  • 1 answers

Yogita Ingle 5 years, 3 months ago

It is to be known that the carbonates that are present in the salt of carbonic acid possessing a carbonate ion. On the other hand, The carbonates of Hydrogen are formed when CO2 is reacting with water.

The ethanoic acid combined with carbonates, as well as the carbonates of Hydrogen leads to the production of salt, C02 and H20. This salt that is formed is known as the sodium acetate.

CO2(aq)+H2O---> H(+) + HCO3-

2CH3COOH + NA2CO3---> 2CH3COONa+H2O+CO2

CH3COOH+NaHCO3---> CH3COONa+H2O+CO2

  • 1 answers

Hanshu Janghu 5 years, 3 months ago

What is start twinkle
  • 1 answers

Meghna Thapar 5 years, 2 months ago

One ohm is equal to the resistance of a conductor through which a current of one ampere flows when a potential difference of one volt is applied to it. Ohm's law states that Current through a conductor is directly proportional to voltage difference across it. The circuit diagram to verify ohm's law is drawn below. Voltmeter across a resistor is connected in parallel. Ammeter to measure current in the circuit is attached in series. A variable resistor is connected. In parallel connection ends of resistance are connected at same point. In parallel connection current through all the resistor are different but voltage across all the resistor remain same since all of them are connected from same point.

  • 1 answers

Yogita Ingle 5 years, 3 months ago

The  bulbs are filled with inert noble gases because these gases do not react with metal even at high tempratute and thus it prolong the life of the filament (made up of tungsten,having high melting and boiling point) in the bulb

  • 3 answers

Satyam Lodhi Rajput 5 years, 3 months ago

Cuso4.5H2O

Sunidhi Singh 5 years, 3 months ago

Copper sulphate

Shubham Saxena ???? 5 years, 3 months ago

CuSO4. Is the chemical formula of blue vitriol.Ok
  • 5 answers

Satyam Lodhi Rajput 5 years, 3 months ago

Rich component of blood

Yashsvee Kumar 5 years, 3 months ago

Full form of ATP

Maahi ......♾ 5 years, 3 months ago

Thanks..

Sriang Nayak 5 years, 3 months ago

Function. ATP hydrolysis provides theenergy needed for many essential processes in organisms and cells. These include intracellular signaling, DNA and RNA synthesis, Purinergic signaling, synaptic signaling, active transport, and muscle contraction.

Yogita Ingle 5 years, 3 months ago

Adenosine triphosphate (ATP) is thought of as the "molecular currency" for energy transfer within the cell. Function: ATPs are used as the main energy source for metabolic functions. They are consumed by energy-requiring (endothermic) processes and produced by energy-releasing (exothermic) processes in the cell.

  • 4 answers

Arpita .9 5 years, 3 months ago

Earthworm ,amoeba

Maahi ......♾ 5 years, 3 months ago

Thankyou....

Sriang Nayak 5 years, 3 months ago

In all unicellular organisms, the cell membrane acts as a respiratory surface. Explanation: The cell membrane respires through the process of diffusion, by allowing oxygen in through the membrane. Due to the size of the organisms, there is no space for organs and breathe like multicellular organisms.

Yogita Ingle 5 years, 3 months ago

In all unicellular organisms, the cell membrane acts as a respiratory surface.

  • The cell membrane respires through the process of diffusion, by allowing oxygen in through the membrane. Due to the size of the organisms, there is no space for organs and breathe like multicellular organisms.
  • Examples of single celled organisms are amoeba, paramecium. In amoeba, respiration takes place through the plasma membrane, where the oxygen gas dissolved in the surrounding, diffuses through the membrane.
  • 2 answers

Tanisha Chhikara 5 years, 3 months ago

Because there is a lack of oxygen in water as compared to us. So, breathing rate is faster in acquatic animals as compared to us.

Yogita Ingle 5 years, 3 months ago

Aquatic animals breathe at a faster rate than the terrestrial animals because the amount of dissolved oxygen in water is fairly low compared to the amount of oxygen in the air. To meet the oxygen need aquatic animals breathe faster to intake more oxygen.

  • 1 answers

Yogita Ingle 5 years, 3 months ago

Respiratory pigments are those which have the capability to bind with oxygen. In multicellular organisms, hemoglobin is the main respiratory pigment present in the red blood cells of the blood and it imparts a red color to the blood. It has a higher affinity for oxygen and increases the oxygen carrying capacity of the blood. The respiratory pigments are required because they carry oxygen to the blood and then circulate to the different parts of the body and converts the deoxygenated blood into the oxygenated blood, it releases carbon dioxide back to the environment. This is called the process of the circulation of blood in the heart and body.

  • 1 answers

Anurag Pradhan 5 years, 3 months ago

Hydrogen is formed in nitric acid when reacted with magnesium becoz magnesium is a metal and when metals react with an acid they produce hydrogen gas as a product. But in case of non metal OH ions are formed. Thank you.
  • 3 answers

Maahi ......♾ 5 years, 3 months ago

Thanks.....

Ifra Ehtesham 5 years, 3 months ago

Lungs are divided in sac like structures to increase the surface area for exchange of gases .And these sac like structures are called alveoli

Harshdeep Singh 5 years, 3 months ago

Because in our body there is neccesary to store some oxygen gas in our lungs to use it in worst time so that the lungs is divided into two sac like structures
  • 4 answers

Sampoorna Pati 5 years, 3 months ago

CuSO4
CuSo4

Maahi ......♾ 5 years, 3 months ago

Thanks for answering my questions......

Shubham Saxena ???? 5 years, 3 months ago

CuSO4. Is the chemical formula of blue vitriol. Ok
  • 4 answers

Rakesh Chaudhary 5 years, 3 months ago

HCl (hydrochloric acid )help to kill the germs which enter our body by our hand , food and it also helps to make medium acidic in stomach ............

Innocent Boy 5 years, 3 months ago

hcl help to kill the microorganism which entre our body by food

Maahi ......♾ 5 years, 3 months ago

Thanks.

Shubham Saxena ???? 5 years, 3 months ago

Hydrochloric acid contributes to protein digestion by supplying H+ which activates pepsinogen, the precursor to pepsin. Pepsinogen is secreted by chief cells in the gastric glands of the body and antrum of the stomach. Thank you .

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